Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

21.

Which of the metabolites is common to respiration mediated breakdown of fats, carbohydrates and proteins?

  • Glucose-6-phosphate

  • Fructose 1, 6-bisphosphate

  • Pyruvic acid

  • Acetyl Co-A


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22.

Meiosis takes place in

  • Meiocyte

  • Conidia

  • Gemmule

  • Megaspore


A.

Meiocyte

In diploid organisms, specialised cells called meiocytes or gamete mother cell undergo meiosis. Conidia and gemmules are asexual reproductive structures found in Penicillium and sponge respectively. Megaspores are female gametes in plants, which undergo sexual reproduction.


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23.

Which of the following is not correctly matched for the organism and its cell wall degrading enzyme?

  • Bacteria - Lysozyme

  • Plant cells - Cellulase

  • Algae - Methylase

  • Fungi - Chitinase


24.

Which of the following are likely to be present in deep sea water?

  • Archaebacteria

  • Eubacteria

  • Blue-green algae

  • Saprophytic fungi


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25.

Natural reservoir of phosphorus is

  • sea water

  • animal bones

  • rock

  • fossils


26.

Which of the following are correctly matched with respect to their taxonomic classification?

  • Flying fish, cuttlefish, silverfish - Pisces

  • Centipede, millipede, spider, scorpion - Insecta

  • House fly, butterfly, tse-tse fly, silverfish - Insecta

  • Spiny anteater, sea urchin, sea cucumber - Echinodermata


27.

Which group of animals belong to the same phylum?

  • Malarial parasite, Amoeba, mosquito

  • Earthworm, pinworm, tapeworm

  • Prawn, scorpion, Locusta

  • Sponge, sea anemone, starfish


28.

One of the representative of Phylum - Arthropoda is

  • cuttlefish

  • silverfish

  • pufferfish

  • flying fish


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29.

The H-zone in the skeletal muscle fibre is due to

  • the absence of myofibrils in the central portion of A-band

  • the central gap between myosin filaments in the A-band

  • the central gap between actin filaments extending through myosin filaments in the A-band

  • extension of myosin filaments in the central portion of the A-band


30.

What external changes are visible after the last moult of a cockroach nymph?

  • Mandibles become harder

  • Anal cerci develop

  • Both fore wings and hind wings develop

  • Labium develops


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