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Question (1)

QN007589

Which part of the cell forms the outermost boundary in animal cells?

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

Correct Answer: B

Explanation:

Plasma membrane forms the outermost boundary in animal cells.

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Question (2)

QN007590

The selectively permeable nature of the plasma membrane means that it:

(A) Allows all substances to pass
(B) Prevents all movement of substances
(C) Allows only certain substances to pass
(D) Allows only gases to pass

Correct Answer: C

Explanation:

Selectively permeable membrane allows only specific substances to pass.

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Question (3)

QN007591

Which cell organelle is known as the “house of coded instructions”?

(A) Ribosome
(B) Nucleus
(C) Lysosome
(D) Vacuole

Correct Answer: B

Explanation:

Nucleus contains genetic information.

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Question (4)

QN007592

Chromosomes are mainly composed of:

(A) Protein and starch
(B) DNA and proteins
(C) Lipids and RNA
(D) Cellulose and proteins

Correct Answer: B

Explanation:

Chromosomes are made of DNA and proteins.

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Question (5)

QN007593

The functional segments of DNA are called:

(A) Plastids
(B) Cristae
(C) Genes
(D) Cisternae

Correct Answer: C

Explanation:

Genes are functional units of DNA.

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Question (6)

QN007594

Which structure is present in plant cells but absent in animal cells?

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

Correct Answer: C

Explanation:

Plant cells possess a cell wall.

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Question (7)

QN007595

The plant cell wall is primarily made up of:

(A) Chitin
(B) Glycogen
(C) Cellulose
(D) Lipids

Correct Answer: C

Explanation:

Plant cell walls mainly contain cellulose.

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Question (8)

QN007596

Which organelle is called the “powerhouse of the cell”?

(A) Chloroplast
(B) Ribosome
(C) Mitochondrion
(D) Golgi apparatus

Correct Answer: C

Explanation:

Mitochondria produce cellular energy.

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Question (9)

QN007597

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

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

Correct Answer: B

Explanation:

Cristae increase surface area for respiration.

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Question (10)

QN007598

ATP mainly functions as:

(A) Genetic material
(B) Pigment molecule
(C) Energy currency of the cell
(D) Digestive enzyme

Correct Answer: C

Explanation:

ATP stores and transfers energy.

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Question (1)

Which part of the cell forms the outermost boundary in animal cells?

Explanation:

Link:

Question (2)

The selectively permeable nature of the plasma membrane means that it:

Explanation:

Link:

Question (3)

Which cell organelle is known as the “house of coded instructions”?

Explanation:

Link:

Question (4)

Chromosomes are mainly composed of:

Explanation:

Link:

Question (5)

The functional segments of DNA are called:

Explanation:

Link:

Question (6)

Which structure is present in plant cells but absent in animal cells?

Explanation:

Link:

Question (7)

The plant cell wall is primarily made up of:

Explanation:

Link:

Question (8)

Which organelle is called the “powerhouse of the cell”?

Explanation:

Link:

Question (9)

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

Explanation:

Link:

Question (10)

ATP mainly functions as:

Explanation:

Link:

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