Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

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1.

The average diameter of red blood corpuscles of man is

  • 7.2 µm

  • 8.1 µm

  • 9.2 µm

  • 10.3 m


A.

7.2 µm

Normal RBCs have a diameter of 6 - 7.5 μm. On a peripheral blood smear, normal RBCs are disc-shaped with a pale-staining central area called the central pallor. When judging red cell size on a blood smear, the classic rule of thumb is to compare them to the nucleus of a small normal lymphocyte


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2.

FAD is electron acceptor during oxidation of which of the following

  • ketoglutarate ➔ Succinyl Co-A

  • Succinic acid➔ Fumaric acid

  • Succinyl Co-A ➔ Succinic acid

  • Fumaric acid ➔ Malic acid


3.

The chemical nature of hormones secreted by α and β cells of pancreas is

  • glycolipid

  • glycoprotein

  • steroid

  • polypeptide


4.

How many ATP molecules are obtained from fermentation of 1 molecule of glucose

  • 4

  • 3

  • 5


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5.

In which stage of cell division chromosomes are most condensed

  • Prophase

  • Metaphase

  • Anaphase

  • Telophase


6.

Which one is product of aerobic respiration

  • Malic acid 

  • Ethyl alcohol

  • Lactic acid

  • Pyruvic acid


7.

CO2 acceptor in C3 cycle is

  • OAA

  • RuBP

  • PEP

  • Malic acid


8.

Virus was discovered by whom

  • Stanley

  • Ivanowski

  • Herelle

  • Beijerinck


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9.

Electron microscope is based on the principle of

  • electromagnetic theory

  • resolution of glass lenses

  • magnification of glass lenses

  • refraction of light


10.

Citric acid cycle is the alternate name of which of the following

  • HMP shunt

  • Glycolysis

  • TCA cycle

  • Calvin cycle


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