sweatSmile/neet-biology-qa · Datasets at Hugging Face

question stringlengths 34 139	subject stringclasses 1 value	choices listlengths 4 4	answer stringclasses 4 values
Casparian strip is chemically composed of	biology	[ "Suberin", "Lignin", "Pectin", "Cellulose" ]	A
The hormone responsible for stimulating the secretion of gastric juice in humans is	biology	[ "Secretin", "Gastrin", "Cholecystokinin", "Enterokinase" ]	B
The Malpighian tubules in cockroach are primarily involved in	biology	[ "Digestion", "Respiration", "Excretion", "Circulation" ]	C
Which of the following is primarily responsible for the opening and closing of stomata in leaves?	biology	[ "Guard cells", "Trichomes", "Palisade cells", "Companion cells" ]	A
In which phylum does the water vascular system function as a means of locomotion?	biology	[ "Annelida", "Arthropoda", "Echinodermata", "Mollusca" ]	C
Which of the following statements correctly describes the function of the Casparian strip in plant roots?	biology	[ "It facilitates the passive movement of water into xylem", "It prevents the backflow of phloem sap", "It blocks the apoplastic pathway, forcing substances through the plasma membrane", "It increases the surface area for absorption" ]	C
In which phylum does the body exhibit radial symmetry in adults but bilateral symmetry in the larval stage?	biology	[ "Arthropoda", "Mollusca", "Echinodermata", "Annelida" ]	C
Which of the following is the main photosynthetic tissue in a typical dicotyledonous leaf?	biology	[ "Palisade parenchyma", "Xylem", "Phloem", "Epidermis" ]	A
In which part of the human nephron does selective reabsorption of glucose primarily occur?	biology	[ "Bowman’s capsule", "Loop of Henle", "Proximal convoluted tubule", "Distal convoluted tubule" ]	C
In which type of phyllotaxy do leaves arise in pairs at each node, opposite to each other?	biology	[ "Alternate", "Opposite", "Whorled", "Spiral" ]	B
Which of the following is the main function of casparian strip in roots?	biology	[ "Facilitating active uptake of minerals", "Preventing apoplastic movement of water", "Increasing root surface area", "Promoting root hair formation" ]	B
Which of the following tissues in plants is mainly responsible for the translocation of organic nutrients?	biology	[ "Xylem", "Phloem", "Collenchyma", "Sclerenchyma" ]	B
In mammals, which structure is primarily responsible for the ultrafiltration of blood to form urine?	biology	[ "Collecting duct", "Loop of Henle", "Bowman’s capsule", "Ureter" ]	C
In earthworms, which structure is involved in the storage of sperm received from another individual during copulation?	biology	[ "Clitellum", "Seminal vesicles", "Seminal receptacles", "Nephridia" ]	C
In which animal does fertilization occur externally?	biology	[ "Frog", "Cow", "Dog", "Pigeon" ]	A
Which of the following plant families is characterized by the presence of zygomorphic flowers and diadelphous stamens?	biology	[ "Fabaceae", "Solanaceae", "Liliaceae", "Poaceae" ]	A
In which plant tissue are sieve tubes and companion cells found together?	biology	[ "Xylem", "Phloem", "Cortex", "Epidermis" ]	B
Which of the following organisms exhibits external fertilization?	biology	[ "Earthworm", "Frog", "Pigeon", "Rabbit" ]	B
Which of the following structures in plants is primarily responsible for the absorption of water and minerals from the soil?	biology	[ "Root hairs", "Stomata", "Lenticels", "Leaf veins" ]	A
In which group of animals is the notochord present throughout life?	biology	[ "Urochordata", "Cephalochordata", "Vertebrata", "Hemichordata" ]	B
Which one of the following is the main photosynthetic tissue in the leaves of dicotyledonous plants?	biology	[ "Epidermis", "Palisade parenchyma", "Collenchyma", "Phloem" ]	B
Which structure in earthworm is responsible for secreting the cocoon during reproduction?	biology	[ "Clitellum", "Setae", "Prostomium", "Nephridia" ]	A
In which of the following phyla does the body cavity originate as a split in mesodermal tissue?	biology	[ "Annelida", "Arthropoda", "Echinodermata", "Mollusca" ]	A
Which plant tissue is responsible for the increase in the girth of dicot stems?	biology	[ "Vascular cambium", "Epidermis", "Collenchyma", "Xylem" ]	A
Which of the following is a feature of dicotyledonous stems but not monocotyledonous stems?	biology	[ "Vascular bundles are scattered", "Secondary growth is commonly present", "Vascular bundles are closed", "Fibrous root system is present" ]	B
Which type of placentation is found in the family Fabaceae?	biology	[ "Axile", "Parietal", "Marginal", "Basal" ]	C
In which part of the human nephron does maximum reabsorption of glomerular filtrate occur?	biology	[ "Distal convoluted tubule", "Proximal convoluted tubule", "Loop of Henle", "Collecting duct" ]	B
Which type of placentation is found in the ovary of tomato?	biology	[ "Marginal", "Axile", "Parietal", "Basal" ]	B
In cockroaches, the Malpighian tubules are primarily involved in:	biology	[ "Digestion", "Excretion", "Respiration", "Reproduction" ]	B
The organ of Corti is a structure found in which part of the mammalian body?	biology	[ "Heart", "Kidney", "Inner ear", "Eye" ]	C
In cockroaches, the respiratory system consists of:	biology	[ "Lungs", "Gills", "Tracheae", "Book lungs" ]	C
Which of the following is the primary function of the Casparian strip in plant roots?	biology	[ "Facilitating symbiotic nitrogen fixation", "Preventing the passive flow of water and solutes into the stele", "Enhancing photosynthesis in root cells", "Transporting sugars from leaves to roots" ]	B
In which phylum would you most likely find animals exhibiting a water vascular system and tube feet?	biology	[ "Annelida", "Arthropoda", "Echinodermata", "Mollusca" ]	C
Which pigment is primarily responsible for the absorption of light during photosynthesis in higher plants?	biology	[ "Chlorophyll a", "Carotene", "Xanthophyll", "Anthocyanin" ]	A
In cockroach, the respiratory system opens to the exterior by which of the following structures?	biology	[ "Tracheoles", "Spiracles", "Malpighian tubules", "Book lungs" ]	B
Which of the following plants exhibits phyllotaxy in a whorled pattern?	biology	[ "Nerium", "China rose", "Mustard", "Sunflower" ]	A
Which hormone is primarily responsible for the metamorphosis of tadpoles into adult frogs?	biology	[ "Thyroxine", "Insulin", "Adrenaline", "Testosterone" ]	A
The casparian strip in plant roots is primarily found in which tissue?	biology	[ "Cortex", "Pericycle", "Endodermis", "Epidermis" ]	C
In which of the following animals is the heart completely four-chambered?	biology	[ "Frog", "Crocodile", "Lizard", "Turtle" ]	B
Which one of the following is a characteristic feature of dicot stem but not monocot stem in transverse section?	biology	[ "Scattered vascular bundles", "Presence of cambium", "Closed vascular bundles", "Absence of pith" ]	B
In cockroach, the respiratory openings called spiracles are present on:	biology	[ "All thoracic and abdominal segments", "Only on thoracic segments", "First two thoracic and last eight abdominal segments", "First two thoracic and first eight abdominal segments" ]	C
Which of the following is the main photosynthetic tissue in the leaves of higher plants?	biology	[ "Epidermis", "Palisade parenchyma", "Phloem", "Collenchyma" ]	B
In which animal is the heart two-chambered, consisting of one atrium and one ventricle?	biology	[ "Frog", "Lizard", "Shark", "Pigeon" ]	C
In cockroach, the respiratory system opens externally through small holes called:	biology	[ "Malpighian tubules", "Tracheoles", "Nephridia", "Spiracles" ]	D
In which of the following plant tissues are sieve tubes and companion cells found adjacent to each other?	biology	[ "Xylem", "Phloem", "Cork", "Sclerenchyma" ]	B
Which of the following is the primary nitrogenous waste excreted by birds?	biology	[ "Ammonia", "Urea", "Uric acid", "Creatinine" ]	C
In which phase of mitosis do the sister chromatids separate and move towards opposite poles?	biology	[ "Prophase", "Metaphase", "Anaphase", "Telophase" ]	C
Which of the following is a characteristic feature of mammals but NOT of other vertebrates?	biology	[ "Triploblastic body plan", "Dorsal nerve cord", "Presence of mammary glands", "Closed circulatory system" ]	C
In which of the following plants is the endosperm formed before fertilization?	biology	[ "Pinus", "Wheat", "Pea", "Maize" ]	A
Which of the following is a characteristic feature of reptiles but not of amphibians?	biology	[ "Moist skin", "External fertilization", "Amniotic egg", "Gills in larval stage" ]	C
Which plant hormone is primarily responsible for promoting cell elongation in stems?	biology	[ "Cytokinin", "Abscisic acid", "Gibberellin", "Ethylene" ]	C
Which of the following is a characteristic feature of dicotyledonous stem in transverse section?	biology	[ "Scattered vascular bundles", "Vascular bundles arranged in a ring", "Closed vascular bundles", "Absence of cortex" ]	B
In mammals, the corpus callosum is primarily responsible for:	biology	[ "Regulating heartbeat", "Connecting the two cerebral hemispheres", "Secreting cerebrospinal fluid", "Controlling voluntary muscle movement" ]	B
Which plant hormone is primarily responsible for inducing seed dormancy?	biology	[ "Gibberellin", "Auxin", "Abscisic acid", "Cytokinin" ]	C
In mammals, the structure that directly connects the developing embryo to the maternal tissues for nutrient exchange is called:	biology	[ "Placenta", "Umbilical cord", "Amniotic sac", "Yolk sac" ]	A
Which of the following is the main photosynthetic tissue in a dicot leaf?	biology	[ "Palisade parenchyma", "Phloem", "Epidermis", "Spongy sclerenchyma" ]	A
Which one of the following is a characteristic feature of dicotyledonous leaves?	biology	[ "Parallel venation", "Reticulate venation", "Whorled phyllotaxy", "Presence of bulliform cells" ]	B
The enzyme responsible for the digestion of chitin in the alimentary canal of cockroach is	biology	[ "Amylase", "Chitinase", "Lipase", "Trypsin" ]	B
Which of the following is a feature of dicotyledonous stem but not monocotyledonous stem?	biology	[ "Vascular bundles are arranged in a ring", "Scattered vascular bundles", "Closed vascular bundles", "Presence of bulliform cells" ]	A
Which organelle in animal cells is primarily responsible for the synthesis of steroid hormones?	biology	[ "Smooth endoplasmic reticulum", "Golgi apparatus", "Lysosome", "Rough endoplasmic reticulum" ]	A
Which meristem is responsible for the increase in girth of dicot stems?	biology	[ "Intercalary meristem", "Apical meristem", "Lateral meristem", "Basal meristem" ]	C
Which of the following is the main photosynthetic tissue in a typical dicot leaf?	biology	[ "Palisade parenchyma", "Collenchyma", "Phloem", "Epidermis" ]	A
Which of the following is a characteristic feature of dicotyledonous stems but NOT monocotyledonous stems?	biology	[ "Vascular bundles arranged in a ring", "Scattered vascular bundles", "Absence of cambium", "Closed vascular bundles" ]	A
The Malpighian tubules in cockroaches primarily function in	biology	[ "Excretion of nitrogenous wastes", "Digestion of food", "Respiration", "Circulation of blood" ]	A
In which of the following animals is the heart four-chambered but both oxygenated and deoxygenated blood get mixed?	biology	[ "Crocodile", "Pigeon", "Turtle", "Frog" ]	C
Which plant hormone is primarily responsible for promoting the elongation of internodes in deepwater rice?	biology	[ "Ethylene", "Abscisic acid", "Gibberellin", "Cytokinin" ]	C
The functional unit of a striated muscle fiber responsible for contraction is called	biology	[ "Myofibril", "Sarcomere", "Sarcoplasm", "Myosin" ]	B
Which one of the following is a characteristic feature of dicot leaf anatomy?	biology	[ "Presence of parallel venation", "Stomata only on the upper surface", "Palisade mesophyll present beneath the upper epidermis", "Bulliform cells in the epidermis" ]	C
Which of the following is a non-endospermic seed?	biology	[ "Pea", "Castor", "Maize", "Coconut" ]	A
The malpighian tubules in cockroach are primarily associated with which physiological function?	biology	[ "Excretion", "Respiration", "Digestion", "Circulation" ]	A
In dicot stems, the vascular bundles are arranged in which of the following ways?	biology	[ "Scattered throughout the ground tissue", "Arranged in a ring", "Concentrated at the center", "Arranged in parallel rows" ]	B
Which structure in earthworms is responsible for the secretion of cocoon during reproduction?	biology	[ "Clitellum", "Setae", "Nephridia", "Prostomium" ]	A
In which group of animals is the excretory organ known as Malpighian tubules found?	biology	[ "Insects", "Molluscs", "Echinoderms", "Annelids" ]	A
Which one of the following is a feature of dicot stem but not monocot stem in T.S.?	biology	[ "Vascular bundles arranged in a ring", "Vascular bundles are scattered", "Closed vascular bundles", "Absence of cambium" ]	A
Which of the following is an example of a plant showing CAM (Crassulacean Acid Metabolism) pathway?	biology	[ "Opuntia", "Wheat", "Rice", "Sunflower" ]	A
In which phylum do animals possess a water vascular system for locomotion?	biology	[ "Echinodermata", "Annelida", "Arthropoda", "Mollusca" ]	A
Which one of the following is a characteristic feature of dicot stem but not of monocot stem?	biology	[ "Vascular bundles arranged in a ring", "Scattered vascular bundles", "Presence of bulliform cells", "Closed vascular bundles" ]	A
The Malpighian tubules of insects primarily function in	biology	[ "Excretion of nitrogenous wastes", "Respiration", "Digestion of food", "Circulation of blood" ]	A
Which of the following is a distinguishing feature of dicotyledonous stems when viewed in a transverse section?	biology	[ "Vascular bundles are scattered throughout the ground tissue", "Vascular bundles are arranged in a ring", "Presence of large air cavities", "Each vascular bundle is surrounded by a bundle sheath" ]	B
In which phylum does the water vascular system primarily function in locomotion and food capture?	biology	[ "Arthropoda", "Echinodermata", "Mollusca", "Annelida" ]	B
In earthworm, nephridia are primarily involved in the process of	biology	[ "Excretion", "Respiration", "Digestion", "Reproduction" ]	A
Which one of the following is a distinguishing feature of monocotyledonous roots?	biology	[ "Presence of many vascular bundles arranged in a ring", "Secondary growth is common", "Pith is well developed", "Cortex is absent" ]	C
In cockroach, which structure is primarily responsible for excretion of nitrogenous wastes?	biology	[ "Malpighian tubules", "Hepatic caeca", "Green glands", "Nephridia" ]	A
In which of the following groups do all members possess a true coelom?	biology	[ "Platyhelminthes", "Annelida", "Cnidaria", "Porifera" ]	B
Which plant hormone is primarily responsible for inducing seed dormancy in adverse conditions?	biology	[ "Auxin", "Gibberellin", "Abscisic acid", "Cytokinin" ]	C
Which of the following plants exhibit phyllotaxy in a whorled arrangement?	biology	[ "China rose", "Guava", "Alstonia", "Mustard" ]	C
In frogs, the tympanum is responsible for which of the following functions?	biology	[ "Production of digestive enzymes", "Regulation of body temperature", "Reception of sound waves", "Exchange of gases" ]	C
In angiosperms, double fertilisation results in the formation of	biology	[ "zygote and antipodal cells", "zygote and endosperm", "endosperm and synergids", "zygote and nucellus" ]	B
Which one of the following is a C4 plant that efficiently fixes carbon dioxide in hot and dry environments?	biology	[ "Wheat", "Rice", "Maize", "Pea" ]	C
In cockroach, the structure responsible for excretion of nitrogenous wastes is	biology	[ "Malpighian tubules", "Nephridia", "Green glands", "Flame cells" ]	A
In which of the following plants does double fertilization occur?	biology	[ "Pinus", "Cycas", "Mango", "Funaria" ]	C
Which structure in an earthworm is primarily responsible for the excretion of metabolic wastes?	biology	[ "Malpighian tubules", "Nephridia", "Green glands", "Flame cells" ]	B
Which of the following tissues is responsible for the secondary growth in the stems of dicotyledonous plants?	biology	[ "Cork cambium", "Intercalary meristem", "Apical meristem", "Protoderm" ]	A
In cockroach, the blood vessel that runs along the dorsal side of the body cavity is called	biology	[ "Ventral nerve cord", "Dorsal heart", "Tracheal tube", "Hepatic caeca" ]	B
The Malpighian tubules in cockroaches are mainly involved in	biology	[ "Digestion of carbohydrates", "Excretion of nitrogenous wastes", "Respiration", "Transportation of nutrients" ]	B
Which of the following is a distinguishing feature of dicot stems when observed in a transverse section?	biology	[ "Scattered vascular bundles", "Vascular bundles arranged in a ring", "Absence of endodermis", "Presence of bulliform cells" ]	B
Which one of the following plants is an example of a stem succulent adapted to arid environments?	biology	[ "Opuntia", "Pisum", "Zea", "Solanum" ]	A
Which structure is responsible for the secretion of testosterone in human males?	biology	[ "Sertoli cells", "Leydig cells", "Seminiferous tubules", "Epididymis" ]	B
Which one of the following statements is true regarding secondary growth in dicot stems?	biology	[ "It results in increase in length of the stem", "It occurs due to activity of intercalary meristem", "It leads to formation of annual rings", "It is absent in most gymnosperms" ]	C
Which one of the following organisms exhibits metameric segmentation?	biology	[ "Earthworm", "Cockroach", "Hydra", "Leech" ]	A

Casparian strip is chemically composed of

biology

[ "Suberin", "Lignin", "Pectin", "Cellulose" ]

A

The hormone responsible for stimulating the secretion of gastric juice in humans is

biology

[ "Secretin", "Gastrin", "Cholecystokinin", "Enterokinase" ]

B

The Malpighian tubules in cockroach are primarily involved in

biology

[ "Digestion", "Respiration", "Excretion", "Circulation" ]

C

Which of the following is primarily responsible for the opening and closing of stomata in leaves?

biology

[ "Guard cells", "Trichomes", "Palisade cells", "Companion cells" ]

A

In which phylum does the water vascular system function as a means of locomotion?

biology

[ "Annelida", "Arthropoda", "Echinodermata", "Mollusca" ]

C

Which of the following statements correctly describes the function of the Casparian strip in plant roots?

biology

[ "It facilitates the passive movement of water into xylem", "It prevents the backflow of phloem sap", "It blocks the apoplastic pathway, forcing substances through the plasma membrane", "It increases the surface area for absorption" ]

C

In which phylum does the body exhibit radial symmetry in adults but bilateral symmetry in the larval stage?

biology

[ "Arthropoda", "Mollusca", "Echinodermata", "Annelida" ]

C

Which of the following is the main photosynthetic tissue in a typical dicotyledonous leaf?

biology

[ "Palisade parenchyma", "Xylem", "Phloem", "Epidermis" ]

A

In which part of the human nephron does selective reabsorption of glucose primarily occur?

biology

[ "Bowman’s capsule", "Loop of Henle", "Proximal convoluted tubule", "Distal convoluted tubule" ]

C

In which type of phyllotaxy do leaves arise in pairs at each node, opposite to each other?

biology

[ "Alternate", "Opposite", "Whorled", "Spiral" ]

B

Which of the following is the main function of casparian strip in roots?

biology

[ "Facilitating active uptake of minerals", "Preventing apoplastic movement of water", "Increasing root surface area", "Promoting root hair formation" ]

B

Which of the following tissues in plants is mainly responsible for the translocation of organic nutrients?

biology

[ "Xylem", "Phloem", "Collenchyma", "Sclerenchyma" ]

B

In mammals, which structure is primarily responsible for the ultrafiltration of blood to form urine?

biology

[ "Collecting duct", "Loop of Henle", "Bowman’s capsule", "Ureter" ]

C

In earthworms, which structure is involved in the storage of sperm received from another individual during copulation?

biology

[ "Clitellum", "Seminal vesicles", "Seminal receptacles", "Nephridia" ]

C

In which animal does fertilization occur externally?

biology

[ "Frog", "Cow", "Dog", "Pigeon" ]

A

Which of the following plant families is characterized by the presence of zygomorphic flowers and diadelphous stamens?

biology

[ "Fabaceae", "Solanaceae", "Liliaceae", "Poaceae" ]

A

In which plant tissue are sieve tubes and companion cells found together?

biology

[ "Xylem", "Phloem", "Cortex", "Epidermis" ]

B

Which of the following organisms exhibits external fertilization?

biology

[ "Earthworm", "Frog", "Pigeon", "Rabbit" ]

B

Which of the following structures in plants is primarily responsible for the absorption of water and minerals from the soil?

biology

[ "Root hairs", "Stomata", "Lenticels", "Leaf veins" ]

A

In which group of animals is the notochord present throughout life?

biology

[ "Urochordata", "Cephalochordata", "Vertebrata", "Hemichordata" ]

B

Which one of the following is the main photosynthetic tissue in the leaves of dicotyledonous plants?

biology

[ "Epidermis", "Palisade parenchyma", "Collenchyma", "Phloem" ]

B

Which structure in earthworm is responsible for secreting the cocoon during reproduction?

biology

[ "Clitellum", "Setae", "Prostomium", "Nephridia" ]

A

In which of the following phyla does the body cavity originate as a split in mesodermal tissue?

biology

[ "Annelida", "Arthropoda", "Echinodermata", "Mollusca" ]

A

Which plant tissue is responsible for the increase in the girth of dicot stems?

biology

[ "Vascular cambium", "Epidermis", "Collenchyma", "Xylem" ]

A

Which of the following is a feature of dicotyledonous stems but not monocotyledonous stems?

biology

[ "Vascular bundles are scattered", "Secondary growth is commonly present", "Vascular bundles are closed", "Fibrous root system is present" ]

B

Which type of placentation is found in the family Fabaceae?

biology

[ "Axile", "Parietal", "Marginal", "Basal" ]

C

In which part of the human nephron does maximum reabsorption of glomerular filtrate occur?

biology

[ "Distal convoluted tubule", "Proximal convoluted tubule", "Loop of Henle", "Collecting duct" ]

B

Which type of placentation is found in the ovary of tomato?

biology

[ "Marginal", "Axile", "Parietal", "Basal" ]

B

In cockroaches, the Malpighian tubules are primarily involved in:

biology

[ "Digestion", "Excretion", "Respiration", "Reproduction" ]

B

The organ of Corti is a structure found in which part of the mammalian body?

biology

[ "Heart", "Kidney", "Inner ear", "Eye" ]

C

In cockroaches, the respiratory system consists of:

biology

[ "Lungs", "Gills", "Tracheae", "Book lungs" ]

C

Which of the following is the primary function of the Casparian strip in plant roots?

biology

[ "Facilitating symbiotic nitrogen fixation", "Preventing the passive flow of water and solutes into the stele", "Enhancing photosynthesis in root cells", "Transporting sugars from leaves to roots" ]

B

In which phylum would you most likely find animals exhibiting a water vascular system and tube feet?

biology

[ "Annelida", "Arthropoda", "Echinodermata", "Mollusca" ]

C

Which pigment is primarily responsible for the absorption of light during photosynthesis in higher plants?

biology

[ "Chlorophyll a", "Carotene", "Xanthophyll", "Anthocyanin" ]

A

In cockroach, the respiratory system opens to the exterior by which of the following structures?

biology

[ "Tracheoles", "Spiracles", "Malpighian tubules", "Book lungs" ]

B

Which of the following plants exhibits phyllotaxy in a whorled pattern?

biology

[ "Nerium", "China rose", "Mustard", "Sunflower" ]

A

Which hormone is primarily responsible for the metamorphosis of tadpoles into adult frogs?

biology

[ "Thyroxine", "Insulin", "Adrenaline", "Testosterone" ]

A

The casparian strip in plant roots is primarily found in which tissue?

biology

[ "Cortex", "Pericycle", "Endodermis", "Epidermis" ]

C

In which of the following animals is the heart completely four-chambered?

biology

[ "Frog", "Crocodile", "Lizard", "Turtle" ]

B

Which one of the following is a characteristic feature of dicot stem but not monocot stem in transverse section?

biology

[ "Scattered vascular bundles", "Presence of cambium", "Closed vascular bundles", "Absence of pith" ]

B

In cockroach, the respiratory openings called spiracles are present on:

biology

[ "All thoracic and abdominal segments", "Only on thoracic segments", "First two thoracic and last eight abdominal segments", "First two thoracic and first eight abdominal segments" ]

C

Which of the following is the main photosynthetic tissue in the leaves of higher plants?

biology

[ "Epidermis", "Palisade parenchyma", "Phloem", "Collenchyma" ]

B

In which animal is the heart two-chambered, consisting of one atrium and one ventricle?

biology

[ "Frog", "Lizard", "Shark", "Pigeon" ]

C

In cockroach, the respiratory system opens externally through small holes called:

biology

[ "Malpighian tubules", "Tracheoles", "Nephridia", "Spiracles" ]

D

In which of the following plant tissues are sieve tubes and companion cells found adjacent to each other?

biology

[ "Xylem", "Phloem", "Cork", "Sclerenchyma" ]

B

Which of the following is the primary nitrogenous waste excreted by birds?

biology

[ "Ammonia", "Urea", "Uric acid", "Creatinine" ]

C

In which phase of mitosis do the sister chromatids separate and move towards opposite poles?

biology

[ "Prophase", "Metaphase", "Anaphase", "Telophase" ]

C

Which of the following is a characteristic feature of mammals but NOT of other vertebrates?

biology

[ "Triploblastic body plan", "Dorsal nerve cord", "Presence of mammary glands", "Closed circulatory system" ]

C

In which of the following plants is the endosperm formed before fertilization?

biology

[ "Pinus", "Wheat", "Pea", "Maize" ]

A

Which of the following is a characteristic feature of reptiles but not of amphibians?

biology

[ "Moist skin", "External fertilization", "Amniotic egg", "Gills in larval stage" ]

C

Which plant hormone is primarily responsible for promoting cell elongation in stems?

biology

[ "Cytokinin", "Abscisic acid", "Gibberellin", "Ethylene" ]

C

Which of the following is a characteristic feature of dicotyledonous stem in transverse section?

biology

[ "Scattered vascular bundles", "Vascular bundles arranged in a ring", "Closed vascular bundles", "Absence of cortex" ]

B

In mammals, the corpus callosum is primarily responsible for:

biology

[ "Regulating heartbeat", "Connecting the two cerebral hemispheres", "Secreting cerebrospinal fluid", "Controlling voluntary muscle movement" ]

B

Which plant hormone is primarily responsible for inducing seed dormancy?

biology

[ "Gibberellin", "Auxin", "Abscisic acid", "Cytokinin" ]

C

In mammals, the structure that directly connects the developing embryo to the maternal tissues for nutrient exchange is called:

biology

[ "Placenta", "Umbilical cord", "Amniotic sac", "Yolk sac" ]

A

Which of the following is the main photosynthetic tissue in a dicot leaf?

biology

[ "Palisade parenchyma", "Phloem", "Epidermis", "Spongy sclerenchyma" ]

A

Which one of the following is a characteristic feature of dicotyledonous leaves?

biology

[ "Parallel venation", "Reticulate venation", "Whorled phyllotaxy", "Presence of bulliform cells" ]

B

The enzyme responsible for the digestion of chitin in the alimentary canal of cockroach is

biology

[ "Amylase", "Chitinase", "Lipase", "Trypsin" ]

B

Which of the following is a feature of dicotyledonous stem but not monocotyledonous stem?

biology

[ "Vascular bundles are arranged in a ring", "Scattered vascular bundles", "Closed vascular bundles", "Presence of bulliform cells" ]

A

Which organelle in animal cells is primarily responsible for the synthesis of steroid hormones?

biology

[ "Smooth endoplasmic reticulum", "Golgi apparatus", "Lysosome", "Rough endoplasmic reticulum" ]

A

Which meristem is responsible for the increase in girth of dicot stems?

biology

[ "Intercalary meristem", "Apical meristem", "Lateral meristem", "Basal meristem" ]

C

Which of the following is the main photosynthetic tissue in a typical dicot leaf?

biology

[ "Palisade parenchyma", "Collenchyma", "Phloem", "Epidermis" ]

A

Which of the following is a characteristic feature of dicotyledonous stems but NOT monocotyledonous stems?

biology

[ "Vascular bundles arranged in a ring", "Scattered vascular bundles", "Absence of cambium", "Closed vascular bundles" ]

A

The Malpighian tubules in cockroaches primarily function in

biology

[ "Excretion of nitrogenous wastes", "Digestion of food", "Respiration", "Circulation of blood" ]

A

In which of the following animals is the heart four-chambered but both oxygenated and deoxygenated blood get mixed?

biology

[ "Crocodile", "Pigeon", "Turtle", "Frog" ]

C

Which plant hormone is primarily responsible for promoting the elongation of internodes in deepwater rice?

biology

[ "Ethylene", "Abscisic acid", "Gibberellin", "Cytokinin" ]

C

The functional unit of a striated muscle fiber responsible for contraction is called

biology

[ "Myofibril", "Sarcomere", "Sarcoplasm", "Myosin" ]

B

Which one of the following is a characteristic feature of dicot leaf anatomy?

biology

[ "Presence of parallel venation", "Stomata only on the upper surface", "Palisade mesophyll present beneath the upper epidermis", "Bulliform cells in the epidermis" ]

C

Which of the following is a non-endospermic seed?

biology

[ "Pea", "Castor", "Maize", "Coconut" ]

A

The malpighian tubules in cockroach are primarily associated with which physiological function?

biology

[ "Excretion", "Respiration", "Digestion", "Circulation" ]

A

In dicot stems, the vascular bundles are arranged in which of the following ways?

biology

[ "Scattered throughout the ground tissue", "Arranged in a ring", "Concentrated at the center", "Arranged in parallel rows" ]

B

Which structure in earthworms is responsible for the secretion of cocoon during reproduction?

biology

[ "Clitellum", "Setae", "Nephridia", "Prostomium" ]

A

In which group of animals is the excretory organ known as Malpighian tubules found?

biology

[ "Insects", "Molluscs", "Echinoderms", "Annelids" ]

A

Which one of the following is a feature of dicot stem but not monocot stem in T.S.?

biology

[ "Vascular bundles arranged in a ring", "Vascular bundles are scattered", "Closed vascular bundles", "Absence of cambium" ]

A

Which of the following is an example of a plant showing CAM (Crassulacean Acid Metabolism) pathway?

biology

[ "Opuntia", "Wheat", "Rice", "Sunflower" ]

A

In which phylum do animals possess a water vascular system for locomotion?

biology

[ "Echinodermata", "Annelida", "Arthropoda", "Mollusca" ]

A

Which one of the following is a characteristic feature of dicot stem but not of monocot stem?

biology

[ "Vascular bundles arranged in a ring", "Scattered vascular bundles", "Presence of bulliform cells", "Closed vascular bundles" ]

A

The Malpighian tubules of insects primarily function in

biology

[ "Excretion of nitrogenous wastes", "Respiration", "Digestion of food", "Circulation of blood" ]

A

Which of the following is a distinguishing feature of dicotyledonous stems when viewed in a transverse section?

biology

[ "Vascular bundles are scattered throughout the ground tissue", "Vascular bundles are arranged in a ring", "Presence of large air cavities", "Each vascular bundle is surrounded by a bundle sheath" ]

B

In which phylum does the water vascular system primarily function in locomotion and food capture?

biology

[ "Arthropoda", "Echinodermata", "Mollusca", "Annelida" ]

B

In earthworm, nephridia are primarily involved in the process of

biology

[ "Excretion", "Respiration", "Digestion", "Reproduction" ]

A

Which one of the following is a distinguishing feature of monocotyledonous roots?

biology

[ "Presence of many vascular bundles arranged in a ring", "Secondary growth is common", "Pith is well developed", "Cortex is absent" ]

C

In cockroach, which structure is primarily responsible for excretion of nitrogenous wastes?

biology

[ "Malpighian tubules", "Hepatic caeca", "Green glands", "Nephridia" ]

A

In which of the following groups do all members possess a true coelom?

biology

[ "Platyhelminthes", "Annelida", "Cnidaria", "Porifera" ]

B

Which plant hormone is primarily responsible for inducing seed dormancy in adverse conditions?

biology

[ "Auxin", "Gibberellin", "Abscisic acid", "Cytokinin" ]

C

Which of the following plants exhibit phyllotaxy in a whorled arrangement?

biology

[ "China rose", "Guava", "Alstonia", "Mustard" ]

C

In frogs, the tympanum is responsible for which of the following functions?

biology

[ "Production of digestive enzymes", "Regulation of body temperature", "Reception of sound waves", "Exchange of gases" ]

C

In angiosperms, double fertilisation results in the formation of

biology

[ "zygote and antipodal cells", "zygote and endosperm", "endosperm and synergids", "zygote and nucellus" ]

B

Which one of the following is a C4 plant that efficiently fixes carbon dioxide in hot and dry environments?

biology

[ "Wheat", "Rice", "Maize", "Pea" ]

C

In cockroach, the structure responsible for excretion of nitrogenous wastes is

biology

[ "Malpighian tubules", "Nephridia", "Green glands", "Flame cells" ]

A

In which of the following plants does double fertilization occur?

biology

[ "Pinus", "Cycas", "Mango", "Funaria" ]

C

Which structure in an earthworm is primarily responsible for the excretion of metabolic wastes?

biology

[ "Malpighian tubules", "Nephridia", "Green glands", "Flame cells" ]

B

Which of the following tissues is responsible for the secondary growth in the stems of dicotyledonous plants?

biology

[ "Cork cambium", "Intercalary meristem", "Apical meristem", "Protoderm" ]

A

In cockroach, the blood vessel that runs along the dorsal side of the body cavity is called

biology

[ "Ventral nerve cord", "Dorsal heart", "Tracheal tube", "Hepatic caeca" ]

B

The Malpighian tubules in cockroaches are mainly involved in

biology

[ "Digestion of carbohydrates", "Excretion of nitrogenous wastes", "Respiration", "Transportation of nutrients" ]

B

Which of the following is a distinguishing feature of dicot stems when observed in a transverse section?

biology

[ "Scattered vascular bundles", "Vascular bundles arranged in a ring", "Absence of endodermis", "Presence of bulliform cells" ]

B

Which one of the following plants is an example of a stem succulent adapted to arid environments?

biology

[ "Opuntia", "Pisum", "Zea", "Solanum" ]

A

Which structure is responsible for the secretion of testosterone in human males?

biology

[ "Sertoli cells", "Leydig cells", "Seminiferous tubules", "Epididymis" ]

B

Which one of the following statements is true regarding secondary growth in dicot stems?

biology

[ "It results in increase in length of the stem", "It occurs due to activity of intercalary meristem", "It leads to formation of annual rings", "It is absent in most gymnosperms" ]

C

Which one of the following organisms exhibits metameric segmentation?

biology

[ "Earthworm", "Cockroach", "Hydra", "Leech" ]

A