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Question (11)

QN007649

The folds present on the inner membrane of mitochondria are called:

(A) Grana
(B) Cristae
(C) Thylakoids
(D) Stroma

Correct Answer: B

Explanation:

Cristae increase the surface area for respiration.

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Question (12)

QN007650

Which plastid mainly performs photosynthesis?

(A) Chromoplast
(B) Leucoplast
(C) Chloroplast
(D) Amyloplast

Correct Answer: C

Explanation:

Chloroplasts carry out photosynthesis.

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Question (13)

QN007651

The green colour of chloroplasts is due to the presence of:

(A) Carotene
(B) Xanthophyll
(C) Chlorophyll
(D) Anthocyanin

Correct Answer: C

Explanation:

Chlorophyll gives green colour to chloroplasts.

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Question (14)

QN007652

Which plastids mainly store starch, oils and proteins?

(A) Chromoplasts
(B) Leucoplasts
(C) Chloroplasts
(D) Grana

Correct Answer: B

Explanation:

Leucoplasts store food materials.

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Question (15)

QN007653

Which plastids are responsible for bright colours in flowers and fruits?

(A) Leucoplasts
(B) Chromoplasts
(C) Chloroplasts
(D) Amyloplasts

Correct Answer: B

Explanation:

Chromoplasts contain coloured pigments.

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Question (16)

QN007654

Vacuoles in plant cells help mainly in:

(A) Protein synthesis
(B) Cell division
(C) Storage and maintaining turgidity
(D) ATP production

Correct Answer: C

Explanation:

Vacuoles maintain turgidity and store materials.

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Question (17)

QN007655

The membrane surrounding a vacuole is called:

(A) Tonoplast
(B) Plasma membrane
(C) Nuclear membrane
(D) Cristae

Correct Answer: A

Explanation:

Tonoplast surrounds the vacuole.

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Question (18)

QN007656

Which organelle contains hydrolytic enzymes for intracellular digestion?

(A) Vacuole
(B) Lysosome
(C) Golgi body
(D) Ribosome

Correct Answer: B

Explanation:

Lysosomes contain hydrolytic enzymes.

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Question (19)

QN007657

Which organelle is directly involved in detoxification of drugs and poisons in liver cells?

(A) Rough ER
(B) Smooth ER
(C) Ribosome
(D) Chloroplast

Correct Answer: B

Explanation:

Smooth ER detoxifies harmful substances.

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Question (20)

QN007658

The coordinated working of cell organelles ensures:

(A) Destruction of all cells
(B) Proper functioning of the cell
(C) Permanent inactivity of nucleus
(D) Absence of metabolism

Correct Answer: B

Explanation:

Organelles work together for proper cell functioning.

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Question (11)

The folds present on the inner membrane of mitochondria are called:

Explanation:

Link:

Question (12)

Which plastid mainly performs photosynthesis?

Explanation:

Link:

Question (13)

The green colour of chloroplasts is due to the presence of:

Explanation:

Link:

Question (14)

Which plastids mainly store starch, oils and proteins?

Explanation:

Link:

Question (15)

Which plastids are responsible for bright colours in flowers and fruits?

Explanation:

Link:

Question (16)

Vacuoles in plant cells help mainly in:

Explanation:

Link:

Question (17)

The membrane surrounding a vacuole is called:

Explanation:

Link:

Question (18)

Which organelle contains hydrolytic enzymes for intracellular digestion?

Explanation:

Link:

Question (19)

Which organelle is directly involved in detoxification of drugs and poisons in liver cells?

Explanation:

Link:

Question (20)

The coordinated working of cell organelles ensures:

Explanation:

Link:

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