Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

11.

In contrast to annelids the platyhelminthes show

  • radial symmetry

  • presence of pseudocoel

  • bilateral symmetry

  • absence of body cavity


D.

absence of body cavity

In contrast to annelids the platyhelminthes show


12.

One of the examples of the action of the autonomous nervous system is

  • knee-jerk response

  • pupillary reflex

  • swallowing of food

  • peristalsis of the intestines


D.

peristalsis of the intestines

One of the examples of the action of the autonomous nervous system is


13.

Haemophilia is more commonly seen in human males than in human females because

  • this disease is due to an X- linked dominant mutation

  • a greater proportion of girls die in infancy

  • this disease is due to an X- linked recessive mutation

  • this disease is due to a Y- linked recessive mutation


C.

this disease is due to an X- linked recessive mutation

Haemophilia is more commonly seen in human males than in human females because


14.

Secretin and cholecystokinin are digestive hormones. They are secreted in

  • oesophagus

  • ileum

  • duodenum

  • pyloric stomach


C.

duodenum

Secretin and cholecystokinin are digestive hormones. They are secreted in


15.

Epithelial cells ofthe intestine involved in food absorption have on their surface

  • pinocytic vesicles

  • phagocytic vesicles

  • zymogen granules

  • micro-villi


D.

micro-villi

Epithelial cells ofthe intestine involved in food absorption have on their surface


16.

An acromian process is characteristically found in the

  • pelvic girdle of mammals

  • skull of frog

  • pectoral girdle of mammals

  • sperm of mammals


C.

pectoral girdle of mammals

An acromian process is characteristically found in the


17.

Which of the following pairs is correctly matched?

  • Cartilaginous joint - Skull bones

  • Hinge joint - Between vertebrae

  • Fibrous joint - Between phalanges

  • Gliding joint - Between zygapophyses of the successive vertebrae


D.

Gliding joint - Between zygapophyses of the successive vertebrae

Which of the following pairs is correctly matched?


18.

Parkinson's disease (characterized by tremors and progressive rigidity of limbs) is caused by degeneration of brain neurons that are involved in movement control and make use of neurotransmitter

  • acetylcholine

  • norepinephrine

  • dopamine

  • GABA


C.

dopamine

Parkinson's disease (characterized by tremors and progressive rigidity of limbs) is caused by degeneration of brain neurons that are involved in movement control and make use of neurotransmitter


19.

Protein synthesis in an animal cell occurs

  • only on the ribosomes present in cytosol

  • on ribosomes present in cytoplasm as well as in mitochondria

  • only on ribosomes attached to the nuclear envelope and endoplasmic reticulum

  • on ribosomes present in the nucleolus as well as in cytoplasm


B.

on ribosomes present in cytoplasm as well as in mitochondria

Protein synthesis in an animal cell occurs


20.

The ability of the venus flytrap to capture insects is due to

  • chemical stimulation by the prey

  • a passive process requiring no special ability on the part of the plant

  • specialized "muscle-like" cells

  • rapid turgor pressure changes


D.

rapid turgor pressure changes

The ability of the venus flytrap to capture insects is due to