Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

1.

The human hind brain comprises three parts, one of which is

  • spinal cord

  • corpus callosum

  • Cerebellum

  • Cerebellum

1634 Views

2.

Which part of the human ear plays no role in hearing as such but is otherwise very much required?

  • Eustachian tube

  • Organ of corti

  • Vestibular apparatus

  • Vestibular apparatus

615 Views

3.

The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the ones categorised as

  • Cyanobacteria

  • Archaebactera

  • Chemosynthetic autotrophs

  • Chemosynthetic autotrophs

919 Views

4.

Companion cells are closely associated with 

  • sieve elements

  • vessel elements

  • trichomes

  • trichomes

787 Views

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5.

Pheretima and its close relatives derive nourishment from

  • sugarcane roots

  • decaying fallen leaves and soil organic matter

  • soil insects

  • soil insects

718 Views

6.

A process that makes important difference between C3 and C4 plants is

  • transpiration

  • glycolysis

  • photosynthesis

  • photosynthesis

589 Views

7.

Best defined function of manganese in green plants is

  • Photolysis of water

  • Calvin cycle

  • Nitrogen fixation

  • Nitrogen fixation

689 Views

8.

A certain road accident patient with unknown blood group needs immediate blood transfusion. His one doctor friend at once offers his blood. What was the blood group of the donor

  • Blood group B

  • Blood group AB

  • Blood group O

  • Blood group O

494 Views

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9.

Consumption of which one of the following foods can prevent the kind of blindness associated with vitamin ‘A’ deficiency?

  • ‘Flaver Savr’ tomato

  • Canolla

  • Golden rice

  • Golden rice


C.

Golden rice

Golden rice is a variety of Oryza sativa (rice) produced through genetic engineering to biosynthesize Beta-acetone, a precursor of vitamin-A in the edible part of rice (i.e., endosperm). The research that led golden rice was conducted with the goal of helping children who suffer from vitamin-A deficiency. Because many children in countries where there is a dietary deficiency in vitamin-A rely on rice as a staple food, the genetic modification of rice to produce the vitamin-A precursor beta-carotene is seen as a simple and less expensive alternative to vitamin supplements. 

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10.

The maximum amount of electrolytes and water (70-80 percent from the glomerular filtrate is reabsorbed in which part of the nephron?

  • Ascending limb of loop of Henle

  • Distal convoluted tubule

  • Proximal convoluted tubule

  • Proximal convoluted tubule

723 Views

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