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

question stringlengths 34 139	subject stringclasses 1 value	choices listlengths 4 4	answer stringclasses 4 values
Which of the following animals is correctly matched with its excretory organ?	biology	[ "Earthworm – Malpighian tubules", "Cockroach – Nephridia", "Frog – Kidneys", "Planaria – Green glands" ]	C
The Casparian strip found in endodermal cells of roots is primarily composed of	biology	[ "Cellulose", "Suberin", "Lignin", "Pectin" ]	B
In cockroaches, the malpighian tubules are involved in the process of	biology	[ "Digestion", "Respiration", "Excretion", "Reproduction" ]	C
Which of the following is the correct sequence of events in the process of muscle contraction in vertebrates?	biology	[ "Release of calcium ions → ATP hydrolysis → Cross-bridge formation → Sliding of actin", "ATP hydrolysis → Cross-bridge detachment → Calcium release → Sliding of actin", "Release of calcium ions → Cross-bridge formation → Sliding of actin → ATP hydrolysis", "ATP hydrolysis → Release of calcium ions → Sliding of actin → Cross-bridge formation" ]	A
Which plant hormone is primarily responsible for the elongation of internodes in deepwater rice?	biology	[ "Ethylene", "Gibberellin", "Cytokinin", "Abscisic acid" ]	B
Which structure in earthworms serves as the site for sperm storage after copulation?	biology	[ "Seminal vesicle", "Cocoon", "Seminal receptacle", "Clitellum" ]	C
Which one of the following is an example of a xerophytic adaptation in plants?	biology	[ "Presence of hydathodes", "Thick cuticle on leaves", "Aerenchyma tissue", "Stomata on upper surface only" ]	B
Which hormone primarily regulates molting in insects?	biology	[ "Ecdysone", "Insulin", "Gibberellin", "Oxytocin" ]	A
In mammals, the corpus callosum connects which of the following structures?	biology	[ "The two cerebral hemispheres", "Cerebellum and medulla oblongata", "Pons and spinal cord", "Thalamus and hypothalamus" ]	A
In which of the following plants would you most likely observe the phenomenon of double fertilization?	biology	[ "Pinus", "Cycas", "Mango", "Marchantia" ]	C
Which structure in a mammalian nephron is primarily responsible for the filtration of blood?	biology	[ "Loop of Henle", "Bowman’s capsule", "Collecting duct", "Distal convoluted tubule" ]	B
In cockroaches, which structure is involved in the excretion of nitrogenous waste?	biology	[ "Malpighian tubules", "Green glands", "Nephridia", "Flame cells" ]	A
Which of the following is a feature of dicotyledonous stem but not of monocotyledonous stem?	biology	[ "Presence of scattered vascular bundles", "Presence of cambium between xylem and phloem", "Closed vascular bundles", "Absence of cortex" ]	B
The malpighian tubules in cockroach are primarily involved in	biology	[ "Respiration", "Excretion", "Digestion", "Circulation" ]	B
Which of the following is a characteristic feature of members belonging to Phylum Arthropoda?	biology	[ "Presence of flame cells", "Unsegmented body", "Jointed appendages", "Cilia for locomotion" ]	C
Which tissue in dicot stems is responsible for the formation of annual rings?	biology	[ "Phloem", "Cork cambium", "Vascular cambium", "Epidermis" ]	C
In cockroach, the respiratory system opens through	biology	[ "Nephridia", "Spiracles", "Malpighian tubules", "Book lungs" ]	B
In cockroaches, which structure is responsible for excreting nitrogenous wastes from the hemolymph?	biology	[ "Malpighian tubules", "Green glands", "Nephridia", "Flame cells" ]	A
Which of the following tissues in plants is responsible for the transport of organic solutes from leaves to other parts of the plant?	biology	[ "Xylem", "Phloem", "Collenchyma", "Sclerenchyma" ]	B
In mammals, which part of the nephron is primarily responsible for selective reabsorption of glucose and amino acids?	biology	[ "Bowman’s capsule", "Loop of Henle", "Proximal convoluted tubule", "Distal convoluted tubule" ]	C
Which phylum exhibits a water vascular system used primarily for locomotion and food capture?	biology	[ "Arthropoda", "Mollusca", "Echinodermata", "Annelida" ]	C
Which of the following is a distinguishing feature of dicot roots when compared to monocot roots?	biology	[ "Presence of pith in the center", "Polyarch xylem", "Exarch xylem arrangement", "Absence of endodermis" ]	C
The Casparian strip, found in the endodermis of roots, is mainly composed of	biology	[ "Lignin and suberin", "Cellulose and hemicellulose", "Pectin and chitin", "Cutin and wax" ]	A
Which type of animal tissue lines the inner surface of blood vessels?	biology	[ "Cuboidal epithelium", "Ciliated epithelium", "Squamous epithelium", "Columnar epithelium" ]	C
Which type of placentation is characterized by ovules attached to the central axis of a multilocular ovary?	biology	[ "Axile", "Parietal", "Marginal", "Basal" ]	A
The bundle of His is primarily responsible for	biology	[ "Generating action potentials in the SA node", "Transmitting impulses from atria to ventricles", "Preventing backflow of blood into atria", "Stimulating contraction of the papillary muscles" ]	B
Which of the following is characteristic of dicot stem but not of monocot stem?	biology	[ "Open vascular bundles", "Scattered vascular bundles", "Absence of endodermis", "Presence of pith" ]	A
In mammals, which structure is primarily responsible for production of mature functional spermatozoa?	biology	[ "Seminiferous tubules", "Vas deferens", "Prostate gland", "Epididymis" ]	A
Which of the following is the main function of companion cells in phloem tissue of angiosperms?	biology	[ "Transport of water and minerals", "Providing mechanical support", "Assisting sieve tube elements in translocation", "Storage of starch" ]	C
In which plant tissue would you find sieve tubes and companion cells?	biology	[ "Xylem", "Phloem", "Cork", "Collenchyma" ]	B
Which of the following is the primary function of bundle sheath cells in C4 plants?	biology	[ "Transport of water", "Storage of starch", "Decarboxylation of malate", "Absorption of minerals" ]	C
Which structure is responsible for the absorption of water and minerals in the root of a plant?	biology	[ "Root cap", "Root hair", "Pericycle", "Vascular bundle" ]	B
In cockroaches, which of the following is the main excretory organ?	biology	[ "Malpighian tubules", "Green glands", "Nephridia", "Flame cells" ]	A
Which of the following is the main photosynthetic tissue in leaves of most dicotyledonous plants?	biology	[ "Palisade parenchyma", "Collenchyma", "Xylem", "Sclerenchyma" ]	A
In cockroach, the spiracles are located on which part of the body?	biology	[ "Only on the thorax", "Only on the abdomen", "On both thorax and abdomen", "Only on the head" ]	C
The process of double fertilization in flowering plants results in the formation of	biology	[ "Two embryos", "Endosperm and embryo", "Two endosperms", "Two zygotes" ]	B
In cockroaches, the respiratory system transports gases through	biology	[ "Blood vessels", "Tracheae", "Book lungs", "Gills" ]	B
Which of the following is the main excretory organ in earthworms?	biology	[ "Malpighian tubules", "Nephridia", "Green glands", "Flame cells" ]	B
Which of the following is a distinguishing feature of monocotyledonous stems?	biology	[ "Vascular bundles are arranged in a ring", "Secondary growth is common", "Vascular bundles are scattered", "Presence of cambium" ]	C
The primary excretory organ in annelids is known as	biology	[ "Malpighian tubule", "Nephron", "Nephridia", "Green gland" ]	C
The Casparian strip, which helps regulate the flow of water and minerals, is present in which plant tissue?	biology	[ "Endodermis", "Pericycle", "Epidermis", "Cortex" ]	A
The Casparian strip found in the endodermal cells of roots is mainly composed of	biology	[ "Lignin", "Suberin", "Cutin", "Pectin" ]	B
Which one of the following animals exhibits metameric segmentation?	biology	[ "Cockroach", "Earthworm", "Octopus", "Snail" ]	B
In cockroach, which structure is responsible for the excretion of nitrogenous wastes?	biology	[ "Malpighian tubules", "Green glands", "Flame cells", "Nephridia" ]	A
In which animal is the respiratory pigment haemocyanin found dissolved in plasma?	biology	[ "Frog", "Cockroach", "Earthworm", "Octopus" ]	D
Which plant tissue is responsible for the movement of water and minerals from roots to leaves?	biology	[ "Phloem", "Xylem", "Collenchyma", "Cork" ]	B
Which of the following plants exhibits phylloclade as an adaptation to arid environments?	biology	[ "Opuntia", "Pisum", "Mangifera", "Solanum" ]	A
Which type of epithelium lines the inner surface of the urinary bladder in mammals?	biology	[ "Ciliated epithelium", "Transitional epithelium", "Stratified squamous epithelium", "Cuboidal epithelium" ]	B
The primary function of Malpighian tubules in cockroaches is	biology	[ "Respiration", "Excretion", "Digestion", "Circulation" ]	B
Which part of the human ear is responsible for maintaining balance and equilibrium?	biology	[ "Cochlea", "Pinna", "Semicircular canals", "Tympanic membrane" ]	C
Which of the following is the main water conducting tissue in gymnosperms?	biology	[ "Vessels", "Tracheids", "Sieve tubes", "Companion cells" ]	B
Which of the following animals is a protandrous hermaphrodite?	biology	[ "Earthworm", "Honey bee", "Starfish", "Scypha" ]	C
Which of the following is the main photosynthetic tissue in most leaves?	biology	[ "Palisade mesophyll", "Endodermis", "Pericycle", "Sclerenchyma" ]	A
Which of the following cell organelles is absent in mature sieve tube elements of angiosperms?	biology	[ "Nucleus", "Mitochondria", "Endoplasmic reticulum", "Plasma membrane" ]	A
In cockroach, the malpighian tubules are primarily responsible for	biology	[ "Respiration", "Circulation", "Excretion", "Digestion" ]	C
Which animal exhibits true radial symmetry throughout its life?	biology	[ "Sea anemone", "Starfish", "Planaria", "Earthworm" ]	A
The cork cambium in dicot stems originates from which tissue?	biology	[ "Phloem", "Epidermis", "Cortex", "Pith" ]	C
Which of the following animals exhibits external fertilisation?	biology	[ "Frog", "Dog", "Pigeon", "Elephant" ]	A
In mammals, which structure serves as the functional unit of the kidney responsible for urine formation?	biology	[ "Neuron", "Nephron", "Alveolus", "Osteon" ]	B
Which hormone stimulates the process of molting in insects?	biology	[ "Ecdysone", "Oxytocin", "Gibberellin", "Vasopressin" ]	A
Casparian strips in plant roots are primarily composed of	biology	[ "Cutin", "Lignin", "Suberin", "Pectin" ]	C
Which of the following cells in plants is primarily responsible for photosynthesis?	biology	[ "Tracheid", "Guard cell", "Palisade mesophyll cell", "Companion cell" ]	C
Which type of placentation is found in tomato?	biology	[ "Axile", "Parietal", "Marginal", "Free central" ]	A
The excretory organs in earthworm are	biology	[ "Nephridia", "Malpighian tubules", "Green glands", "Flame cells" ]	A
Which type of phyllotaxy is observed in Nerium leaves?	biology	[ "Alternate", "Opposite", "Whorled", "Spiral" ]	B
The excretory organ in earthworm is known as	biology	[ "Malpighian tubules", "Nephridia", "Flame cells", "Green glands" ]	B
Which of the following animals exhibits metamorphosis during its development?	biology	[ "Earthworm", "Frog", "Pigeon", "Rabbit" ]	B
Casparian strips are characteristic features of which plant tissue?	biology	[ "Phloem", "Cortex", "Endodermis", "Pericycle" ]	C
Which of the following is the excretory organ in earthworm?	biology	[ "Malpighian tubules", "Nephridia", "Green glands", "Flame cells" ]	B
Which of the following is the primary photosynthetic tissue in the leaf of a dicot plant?	biology	[ "Collenchyma", "Palisade parenchyma", "Sclerenchyma", "Xylem" ]	B
Which of the following structures is present in the exoskeleton of cockroach but absent in earthworm?	biology	[ "Chitin", "Cuticle", "Sclerites", "Setae" ]	C
Casparian strip is characteristic of which plant tissue?	biology	[ "Cortex", "Endodermis", "Pericycle", "Phloem" ]	B
Which one of the following animals is correctly matched with its mode of fertilization?	biology	[ "Frog – External fertilization", "Earthworm – External fertilization", "Bird – External fertilization", "Dogfish – External fertilization" ]	A
Which one of the following plants exhibits phylloclade as a modification for photosynthesis?	biology	[ "Opuntia", "Pisum", "Solanum", "Helianthus" ]	A
Which of the following is the primary nitrogenous waste excreted by adult amphibians?	biology	[ "Ammonia", "Urea", "Uric acid", "Creatinine" ]	B
Which one of the following is a C4 plant that exhibits Kranz anatomy?	biology	[ "Wheat", "Rice", "Maize", "Pea" ]	C
The flame cells in Platyhelminthes primarily function in	biology	[ "Respiration", "Excretion", "Reproduction", "Circulation" ]	B
Which of the following plant tissues is responsible for the increase in girth of dicot stems?	biology	[ "Apical meristem", "Intercalary meristem", "Lateral meristem", "Epidermis" ]	C
Which of the following plants exhibits phylloclade modification for photosynthesis?	biology	[ "Opuntia", "Pisum", "Solanum", "Brassica" ]	A
Which enzyme is secreted by the gastric glands of infants to help in the digestion of milk proteins?	biology	[ "Trypsin", "Pepsin", "Renin", "Lipase" ]	C
Which one of the following structures is responsible for the initiation of root nodules in leguminous plants?	biology	[ "Root hair", "Cortex", "Epidermis", "Pericycle" ]	A
In which animal is the canal system a characteristic feature?	biology	[ "Hydra", "Earthworm", "Leech", "Sycon" ]	D
In which part of a dicot stem is the cambium present, contributing to secondary growth?	biology	[ "Between xylem and phloem", "Inside the pith", "Epidermis", "Cortex" ]	A
Which of the following is a characteristic feature of mammals but not of reptiles?	biology	[ "External fertilization", "Exoskeleton of keratin", "Presence of mammary glands", "Poikilothermy" ]	C
Which one of the following is a distinguishing feature of dicot stem when compared with monocot stem?	biology	[ "Presence of scattered vascular bundles", "Vascular bundles arranged in a ring", "Absence of cambium", "Closed vascular bundles" ]	B
Which mammalian blood vessel carries oxygenated blood from the lungs to the heart?	biology	[ "Pulmonary artery", "Pulmonary vein", "Aorta", "Superior vena cava" ]	B
The main nitrogenous waste excreted by birds is:	biology	[ "Ammonia", "Urea", "Uric acid", "Creatinine" ]	C
Which of the following is the chief photosynthetic tissue in a dicot leaf?	biology	[ "Palisade parenchyma", "Spongy parenchyma", "Collenchyma", "Sclerenchyma" ]	A
Which of the following statements about phloem transport in plants is correct?	biology	[ "Sucrose moves from sink to source", "Companion cells assist in loading sugars into sieve tubes", "Phloem translocates only inorganic nutrients", "Movement through phloem is always passive" ]	B
Which structure in dicot stems is responsible for the formation of secondary xylem and secondary phloem?	biology	[ "Endodermis", "Vascular cambium", "Pericycle", "Epidermis" ]	B
In cockroach, the respiratory system consists of which of the following?	biology	[ "Book lungs", "Gills", "Tracheae", "Lungs" ]	C
Which of the following types of inflorescence is characterized by the youngest flower being present at the base and the oldest at the apex?	biology	[ "Cymose", "Racemose", "Umbel", "Spikelet" ]	B
In mammals, the diaphragm is primarily involved in which physiological process?	biology	[ "Digestion", "Excretion", "Respiration", "Circulation" ]	C

Which of the following animals is correctly matched with its excretory organ?

biology

[ "Earthworm – Malpighian tubules", "Cockroach – Nephridia", "Frog – Kidneys", "Planaria – Green glands" ]

C

The Casparian strip found in endodermal cells of roots is primarily composed of

biology

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

B

In cockroaches, the malpighian tubules are involved in the process of

biology

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

C

Which of the following is the correct sequence of events in the process of muscle contraction in vertebrates?

biology

[ "Release of calcium ions → ATP hydrolysis → Cross-bridge formation → Sliding of actin", "ATP hydrolysis → Cross-bridge detachment → Calcium release → Sliding of actin", "Release of calcium ions → Cross-bridge formation → Sliding of actin → ATP hydrolysis", "ATP hydrolysis → Release of calcium ions → Sliding of actin → Cross-bridge formation" ]

A

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

biology

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

B

Which structure in earthworms serves as the site for sperm storage after copulation?

biology

[ "Seminal vesicle", "Cocoon", "Seminal receptacle", "Clitellum" ]

C

Which one of the following is an example of a xerophytic adaptation in plants?

biology

[ "Presence of hydathodes", "Thick cuticle on leaves", "Aerenchyma tissue", "Stomata on upper surface only" ]

B

Which hormone primarily regulates molting in insects?

biology

[ "Ecdysone", "Insulin", "Gibberellin", "Oxytocin" ]

A

In mammals, the corpus callosum connects which of the following structures?

biology

[ "The two cerebral hemispheres", "Cerebellum and medulla oblongata", "Pons and spinal cord", "Thalamus and hypothalamus" ]

A

In which of the following plants would you most likely observe the phenomenon of double fertilization?

biology

[ "Pinus", "Cycas", "Mango", "Marchantia" ]

C

Which structure in a mammalian nephron is primarily responsible for the filtration of blood?

biology

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

B

In cockroaches, which structure is involved in the excretion of nitrogenous waste?

biology

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

A

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

biology

[ "Presence of scattered vascular bundles", "Presence of cambium between xylem and phloem", "Closed vascular bundles", "Absence of cortex" ]

B

The malpighian tubules in cockroach are primarily involved in

biology

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

B

Which of the following is a characteristic feature of members belonging to Phylum Arthropoda?

biology

[ "Presence of flame cells", "Unsegmented body", "Jointed appendages", "Cilia for locomotion" ]

C

Which tissue in dicot stems is responsible for the formation of annual rings?

biology

[ "Phloem", "Cork cambium", "Vascular cambium", "Epidermis" ]

C

In cockroach, the respiratory system opens through

biology

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

B

In cockroaches, which structure is responsible for excreting nitrogenous wastes from the hemolymph?

biology

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

A

Which of the following tissues in plants is responsible for the transport of organic solutes from leaves to other parts of the plant?

biology

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

B

In mammals, which part of the nephron is primarily responsible for selective reabsorption of glucose and amino acids?

biology

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

C

Which phylum exhibits a water vascular system used primarily for locomotion and food capture?

biology

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

C

Which of the following is a distinguishing feature of dicot roots when compared to monocot roots?

biology

[ "Presence of pith in the center", "Polyarch xylem", "Exarch xylem arrangement", "Absence of endodermis" ]

C

The Casparian strip, found in the endodermis of roots, is mainly composed of

biology

[ "Lignin and suberin", "Cellulose and hemicellulose", "Pectin and chitin", "Cutin and wax" ]

A

Which type of animal tissue lines the inner surface of blood vessels?

biology

[ "Cuboidal epithelium", "Ciliated epithelium", "Squamous epithelium", "Columnar epithelium" ]

C

Which type of placentation is characterized by ovules attached to the central axis of a multilocular ovary?

biology

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

A

The bundle of His is primarily responsible for

biology

[ "Generating action potentials in the SA node", "Transmitting impulses from atria to ventricles", "Preventing backflow of blood into atria", "Stimulating contraction of the papillary muscles" ]

B

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

biology

[ "Open vascular bundles", "Scattered vascular bundles", "Absence of endodermis", "Presence of pith" ]

A

In mammals, which structure is primarily responsible for production of mature functional spermatozoa?

biology

[ "Seminiferous tubules", "Vas deferens", "Prostate gland", "Epididymis" ]

A

Which of the following is the main function of companion cells in phloem tissue of angiosperms?

biology

[ "Transport of water and minerals", "Providing mechanical support", "Assisting sieve tube elements in translocation", "Storage of starch" ]

C

In which plant tissue would you find sieve tubes and companion cells?

biology

[ "Xylem", "Phloem", "Cork", "Collenchyma" ]

B

Which of the following is the primary function of bundle sheath cells in C4 plants?

biology

[ "Transport of water", "Storage of starch", "Decarboxylation of malate", "Absorption of minerals" ]

C

Which structure is responsible for the absorption of water and minerals in the root of a plant?

biology

[ "Root cap", "Root hair", "Pericycle", "Vascular bundle" ]

B

In cockroaches, which of the following is the main excretory organ?

biology

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

A

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

biology

[ "Palisade parenchyma", "Collenchyma", "Xylem", "Sclerenchyma" ]

A

In cockroach, the spiracles are located on which part of the body?

biology

[ "Only on the thorax", "Only on the abdomen", "On both thorax and abdomen", "Only on the head" ]

C

The process of double fertilization in flowering plants results in the formation of

biology

[ "Two embryos", "Endosperm and embryo", "Two endosperms", "Two zygotes" ]

B

In cockroaches, the respiratory system transports gases through

biology

[ "Blood vessels", "Tracheae", "Book lungs", "Gills" ]

B

Which of the following is the main excretory organ in earthworms?

biology

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

B

Which of the following is a distinguishing feature of monocotyledonous stems?

biology

[ "Vascular bundles are arranged in a ring", "Secondary growth is common", "Vascular bundles are scattered", "Presence of cambium" ]

C

The primary excretory organ in annelids is known as

biology

[ "Malpighian tubule", "Nephron", "Nephridia", "Green gland" ]

C

The Casparian strip, which helps regulate the flow of water and minerals, is present in which plant tissue?

biology

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

A

The Casparian strip found in the endodermal cells of roots is mainly composed of

biology

[ "Lignin", "Suberin", "Cutin", "Pectin" ]

B

Which one of the following animals exhibits metameric segmentation?

biology

[ "Cockroach", "Earthworm", "Octopus", "Snail" ]

B

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

biology

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

A

In which animal is the respiratory pigment haemocyanin found dissolved in plasma?

biology

[ "Frog", "Cockroach", "Earthworm", "Octopus" ]

D

Which plant tissue is responsible for the movement of water and minerals from roots to leaves?

biology

[ "Phloem", "Xylem", "Collenchyma", "Cork" ]

B

Which of the following plants exhibits phylloclade as an adaptation to arid environments?

biology

[ "Opuntia", "Pisum", "Mangifera", "Solanum" ]

A

Which type of epithelium lines the inner surface of the urinary bladder in mammals?

biology

[ "Ciliated epithelium", "Transitional epithelium", "Stratified squamous epithelium", "Cuboidal epithelium" ]

B

The primary function of Malpighian tubules in cockroaches is

biology

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

B

Which part of the human ear is responsible for maintaining balance and equilibrium?

biology

[ "Cochlea", "Pinna", "Semicircular canals", "Tympanic membrane" ]

C

Which of the following is the main water conducting tissue in gymnosperms?

biology

[ "Vessels", "Tracheids", "Sieve tubes", "Companion cells" ]

B

Which of the following animals is a protandrous hermaphrodite?

biology

[ "Earthworm", "Honey bee", "Starfish", "Scypha" ]

C

Which of the following is the main photosynthetic tissue in most leaves?

biology

[ "Palisade mesophyll", "Endodermis", "Pericycle", "Sclerenchyma" ]

A

Which of the following cell organelles is absent in mature sieve tube elements of angiosperms?

biology

[ "Nucleus", "Mitochondria", "Endoplasmic reticulum", "Plasma membrane" ]

A

In cockroach, the malpighian tubules are primarily responsible for

biology

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

C

Which animal exhibits true radial symmetry throughout its life?

biology

[ "Sea anemone", "Starfish", "Planaria", "Earthworm" ]

A

The cork cambium in dicot stems originates from which tissue?

biology

[ "Phloem", "Epidermis", "Cortex", "Pith" ]

C

Which of the following animals exhibits external fertilisation?

biology

[ "Frog", "Dog", "Pigeon", "Elephant" ]

A

In mammals, which structure serves as the functional unit of the kidney responsible for urine formation?

biology

[ "Neuron", "Nephron", "Alveolus", "Osteon" ]

B

Which hormone stimulates the process of molting in insects?

biology

[ "Ecdysone", "Oxytocin", "Gibberellin", "Vasopressin" ]

A

Casparian strips in plant roots are primarily composed of

biology

[ "Cutin", "Lignin", "Suberin", "Pectin" ]

C

Which of the following cells in plants is primarily responsible for photosynthesis?

biology

[ "Tracheid", "Guard cell", "Palisade mesophyll cell", "Companion cell" ]

C

Which type of placentation is found in tomato?

biology

[ "Axile", "Parietal", "Marginal", "Free central" ]

A

The excretory organs in earthworm are

biology

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

A

Which type of phyllotaxy is observed in Nerium leaves?

biology

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

B

The excretory organ in earthworm is known as

biology

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

B

Which of the following animals exhibits metamorphosis during its development?

biology

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

B

Casparian strips are characteristic features of which plant tissue?

biology

[ "Phloem", "Cortex", "Endodermis", "Pericycle" ]

C

Which of the following is the excretory organ in earthworm?

biology

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

B

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

biology

[ "Collenchyma", "Palisade parenchyma", "Sclerenchyma", "Xylem" ]

B

Which of the following structures is present in the exoskeleton of cockroach but absent in earthworm?

biology

[ "Chitin", "Cuticle", "Sclerites", "Setae" ]

C

Casparian strip is characteristic of which plant tissue?

biology

[ "Cortex", "Endodermis", "Pericycle", "Phloem" ]

B

Which one of the following animals is correctly matched with its mode of fertilization?

biology

[ "Frog – External fertilization", "Earthworm – External fertilization", "Bird – External fertilization", "Dogfish – External fertilization" ]

A

Which one of the following plants exhibits phylloclade as a modification for photosynthesis?

biology

[ "Opuntia", "Pisum", "Solanum", "Helianthus" ]

A

Which of the following is the primary nitrogenous waste excreted by adult amphibians?

biology

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

B

Which one of the following is a C4 plant that exhibits Kranz anatomy?

biology

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

C

The flame cells in Platyhelminthes primarily function in

biology

[ "Respiration", "Excretion", "Reproduction", "Circulation" ]

B

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

biology

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

C

Which of the following plants exhibits phylloclade modification for photosynthesis?

biology

[ "Opuntia", "Pisum", "Solanum", "Brassica" ]

A

Which enzyme is secreted by the gastric glands of infants to help in the digestion of milk proteins?

biology

[ "Trypsin", "Pepsin", "Renin", "Lipase" ]

C

Which one of the following structures is responsible for the initiation of root nodules in leguminous plants?

biology

[ "Root hair", "Cortex", "Epidermis", "Pericycle" ]

A

In which animal is the canal system a characteristic feature?

biology

[ "Hydra", "Earthworm", "Leech", "Sycon" ]

D

In which part of a dicot stem is the cambium present, contributing to secondary growth?

biology

[ "Between xylem and phloem", "Inside the pith", "Epidermis", "Cortex" ]

A

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

biology

[ "External fertilization", "Exoskeleton of keratin", "Presence of mammary glands", "Poikilothermy" ]

C

Which one of the following is a distinguishing feature of dicot stem when compared with monocot stem?

biology

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

B

Which mammalian blood vessel carries oxygenated blood from the lungs to the heart?

biology

[ "Pulmonary artery", "Pulmonary vein", "Aorta", "Superior vena cava" ]

B

The main nitrogenous waste excreted by birds is:

biology

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

C

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

biology

[ "Palisade parenchyma", "Spongy parenchyma", "Collenchyma", "Sclerenchyma" ]

A

Which of the following statements about phloem transport in plants is correct?

biology

[ "Sucrose moves from sink to source", "Companion cells assist in loading sugars into sieve tubes", "Phloem translocates only inorganic nutrients", "Movement through phloem is always passive" ]

B

Which structure in dicot stems is responsible for the formation of secondary xylem and secondary phloem?

biology

[ "Endodermis", "Vascular cambium", "Pericycle", "Epidermis" ]

B

In cockroach, the respiratory system consists of which of the following?

biology

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

C

Which of the following types of inflorescence is characterized by the youngest flower being present at the base and the oldest at the apex?

biology

[ "Cymose", "Racemose", "Umbel", "Spikelet" ]

B

In mammals, the diaphragm is primarily involved in which physiological process?

biology

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

C