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Question (11)

QN003001

Which structure is present only in plant cells and not in animal cells?

(A) Cell membrane
(B) Cytoplasm
(C) Cell wall
(D) Nucleus

Correct Answer: C

Explanation:

Cell wall is present only in plant cells.

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Question (12)

QN003002

The cell wall in plants is mainly made up of:

(A) protein
(B) cellulose
(C) starch
(D) fat

Correct Answer: B

Explanation:

Plant cell walls contain cellulose.

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Question (13)

QN003003

Which part of the cell contains genetic material?

(A) Cytoplasm
(B) Vacuole
(C) Nucleus
(D) Cell wall

Correct Answer: C

Explanation:

Genetic material is present in the nucleus.

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Question (14)

QN003004

Which of the following is correctly matched?

(A) Nucleus — storage of food only
(B) Cytoplasm — controls all activities
(C) Cell membrane — outer covering of cell
(D) Vacuole — production of chlorophyll

Correct Answer: C

Explanation:

Cell membrane forms the outer boundary.

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Question (15)

QN003005

A student observes brick-like structures in onion peel cells mainly because of the presence of:

(A) nucleus
(B) vacuole
(C) cell wall
(D) cytoplasm

Correct Answer: C

Explanation:

Cell wall gives shape to plant cells.

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Question (16)

QN003006

If one cell divides into 2 cells every hour, how many cells will form after 5 hours starting from one cell?

(A) 8
(B) 16
(C) 32
(D) 64

Correct Answer: C

Explanation:

1 → 2 → 4 → 8 → 16 → 32.

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Question (17)

QN003007

Which of the following activities is performed by cells?

(A) Respiration
(B) Nutrition
(C) Excretion
(D) All of these

Correct Answer: D

Explanation:

Cells perform all life activities.

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Question (18)

QN003008

Which cell organelle is often called the “control centre” of the cell?

(A) Vacuole
(B) Cytoplasm
(C) Nucleus
(D) Cell membrane

Correct Answer: C

Explanation:

Nucleus controls cell functions.

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Question (19)

QN003009

Plant cells appear rigid mainly due to the presence of:

(A) cytoplasm
(B) nucleus
(C) cell wall
(D) chromosomes

Correct Answer: C

Explanation:

Cell wall provides rigidity.

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Question (20)

QN003010

Which of the following statements is true for multicellular organisms?

(A) One cell performs all functions
(B) Different cells perform specialised functions
(C) They do not contain tissues
(D) They cannot grow

Correct Answer: B

Explanation:

Different cells perform specialised tasks.

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Question (11)

Which structure is present only in plant cells and not in animal cells?

Explanation:

Link:

Question (12)

The cell wall in plants is mainly made up of:

Explanation:

Link:

Question (13)

Which part of the cell contains genetic material?

Explanation:

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Question (14)

Which of the following is correctly matched?

Explanation:

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Question (15)

A student observes brick-like structures in onion peel cells mainly because of the presence of:

Explanation:

Link:

Question (16)

If one cell divides into 2 cells every hour, how many cells will form after 5 hours starting from one cell?

Explanation:

Link:

Question (17)

Which of the following activities is performed by cells?

Explanation:

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Question (18)

Which cell organelle is often called the “control centre” of the cell?

Explanation:

Link:

Question (19)

Plant cells appear rigid mainly due to the presence of:

Explanation:

Link:

Question (20)

Which of the following statements is true for multicellular organisms?

Explanation:

Link:

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