Biology MCQs

Biology

Cell structure And Function


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#25

In the leaves of green plants, peroxisomes are the sites of

A)  Respiration

B)  Photosynthesis

C)  Photo respiration

D)  Phototropism

Answer:   C
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#26

The cell wall was discovered by 

A)  Palade

B)  Robert Brown

C)  Robert Hooke

D)  Schleiden

Answer:   C
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#27

In plants culture cells are held togather by

A)  Middle lamella

B)  Primary walls

C)  Scondary walls 

D)  Cell membranes

Answer:   A
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#28

According to fluid mosaic model of cell membrane, which one is like a sea

A)  Proteins

B)  Permeases

C)  Carbohydrates

D)  Lipids

Answer:   D
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#29

Cytoplasmic streaming movements are called

A)  Necrosis

B)  Cyclosis

C)  Phagocytosis

D)  Endocytosis

Answer:   B
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#30

Secretions are of which organelle detoxify harmful compounds

A)  Lysosomes

B)  SER

C)  RER

D)  Plastids

Answer:   B
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#31

Ribosomes were discovered by

A)  Svedberg

B)  Palade

C)  De-Duve

D)  Robert Hooke

Answer:   B
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#32

Which one of the following are single membrane bounded organelles

A)  Chloroplasts

B)  Mitchondria

C)  Nucleus

D)  Lysosomes

Answer:   D
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