Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

51.

Genetically engineered human insulin is called

  • humulin

  • haematin

  • hybridoma

  • hybrid


52.

The food chain starts from :

  • consumer

  • producer

  • decomposer

  • nitrogen fixation


53.

Humulin is a :

  • form of chitin

  • human insulin

  • digestive enzyme

  • antibiotics


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54.

The substrate for photorespiration is :

  • glycolate

  • acetyl Co-A

  • pyruvic acid

  • glucose


A.

glycolate

Photorespiration is a kind of respiration that occurs in photosynthetic cells only. In this process chloroplast, mitochondria and peroxisomes are involved. The substrate for photorespiration is glycolate formed in the chloroplast. It is converted enzymatically into glyoxalate in peroxisome which further changes into glycine. In mitochondria glycine changes into serine. It is the characteristic feature of C3 plants.


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55.

Which of the following is the product of glucose fermentation by yeast?

  • C6H12O6

  • C2H5OH

  • (C6H10O5)n

  • CH2OH


56.

The formation of embryo without fusion of gametes is termed as :

  • apospory

  • isogamy

  • apogamy

  • syngamy


57.

The pesticide used as preventive measure in buildings is :

  • aldrin

  • dieldrin

  • endrin

  • DDT


58.

Which of the following is not a pollutant?

  • Hydrogen

  • Carbon dioxide

  • Sulphur dioxide

  • Carbon monooxide


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59.

Main air pollutant is :

  • CO

  • CO2

  • S

  • N2


60.

Cheese and yogurt are the products of

  • dehydration

  • fermentation

  • pasteurization

  • distillation


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