Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

1.

Which of the following is photophosphorylation?

  • Production of ATP from ADP

  • Production of NADP

  • Synthesis of ADP from ATP

  • Production of PGA


A.

Production of ATP from ADP

Which of the following is photophosphorylation?


2.

What is the structural element of cell wall?

  • Matrix

  • Microtubules

  • Microfibrils

  • Arabinogalactans


C.

Microfibrils

What is the structural element of cell wall?


3.

In the following pairs, where do you get lignin in both the element?

  • Tracheid and collenchyma

  • Sclerenchyma and sieve tube

  • Sclerenchyma and trachea

  • Parenchyma and endodermis


C.

Sclerenchyma and trachea

In the following pairs, where do you get lignin in both the element?


4.

In which book, Bentham and Hooker proposed their classification?

  • Genera Plantarum

  • Species Plantarum

  • Historia Plantarum

  • Historia Naturae


A.

Genera Plantarum

In which book, Bentham and Hooker proposed their classification?


5.

When does a plant wilt?

  • When phloem is blocked

  • When xylem is blocked

  • Pith is removed

  • A few leaves are removed


B.

When xylem is blocked

When does a plant wilt?


6.

Which chemical is used for induction of polyploidy?

  • Cytokinin

  • Nitrous acid

  • Colchicine

  • IAA


C.

Colchicine

Which chemical is used for induction of polyploidy?


7.

Which of the following sequence is a correct one for meiotic cell cycle?

  • GS G M G1

  • G1 G2 G2

  • G2 G1 G2

  • G1 G2 S


A.

GS G M G1

Which of the following sequence is a correct one for meiotic cell cycle?


8.

From which of the following, photosynthetic autotrophs receive their energy?

  • Heat

  • Inorganic chemicals

  • Organic chemicals

  • Light


D.

Light

From which of the following, photosynthetic autotrophs receive their energy?


9.

In guava, cucurbits flowers are

  • hypogynous

  • epigynous

  • perigynous

  • Both (a) and (c)


B.

epigynous

In guava, cucurbits flowers are


10.

In floral formula (K) denotes

  • polysepalous

  • gamosepalous

  • polypetalous

  • gamopetalous


A.

polysepalous

In floral formula (K) denotes