Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

31.

Quiescent centre is found in plants at

  • root tip

  • cambium

  • shoot tip

  • leaf tip


32.

When the cell is fully turgid, its

  • DPD = OP

  • DPD = zero

  • WP = TP

  • OP = zero


33.

Which one is true for ATP?

  • ATP is a prosthetic part of an enzyme

  • ATP is an enzyme

  • ATP is the organic ions of enzyme

  • ATP is a coenzyme


34.

Purines possess nitrogen at

  • 1, 2, 4 and 6 position

  • 1, 3, 5 and 7 position

  • 1, 3, 7 and 9 position

  • 1, 2, 6 and 8 position


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35.

Thylakoids occur inside

  • mitochondria

  • chloroplast

  • Golgi apparatus

  • endoplasmic reticulum


36.

Chitin is a

  • polysaccharide

  • nitrogenous polysaccharide

  • lipoprotein

  • protein


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37.

Mitochondria are semiautonomous as they possess

  • DNA

  • DNA and RNA

  • DNA, RNA and ribosomes

  • Protein


C.

DNA, RNA and ribosomes

Each mitochondrion is a double membrane bound structure with the outer membrane and the inner membrane dividing its lumen distinctly into two aqueous compartments, ie, the outer compartment and the inner compartment. The inner compartment is called the matrix. The matrix possesses single circular DNA molecule, a few RNA molecules, ribosomes (70S) and the components required for the synthesis of proteins.


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38.

Which of the cell organelle lacks membrane?

  • Mesosome

  • Mitochondria

  • Ribosome

  • Liposome


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39.

Interfascicular cambium is a

  • primary meristematic tissue

  • primordial meristem

  • type of protoderm

  • secondary meristematic tissue


40.

Chloroplast dimorphism is a characteristic feature of

  • plants with Calvin cycle

  • C4 -plants

  • all plants

  • only in algae


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