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Question (11)

QN007749

Which scientist observed living cells for the first time?

(A) Robert Hooke
(B) Schleiden
(C) Leeuwenhoek
(D) Schwann

Correct Answer: C

Explanation:

Leeuwenhoek first observed living cells.

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Question (12)

QN007750

Cell theory applies to:

(A) Plants only
(B) Animals only
(C) All living organisms
(D) Fungi only

Correct Answer: C

Explanation:

Cell theory applies to all living organisms.

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Question (13)

QN007751

Which level of organization is formed by a group of tissues?

(A) Cell
(B) Organ
(C) Organism
(D) Molecule

Correct Answer: B

Explanation:

Tissues combine to form organs.

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Question (14)

QN007752

Which scientist concluded that animals are made of cells?

(A) Schwann
(B) Schleiden
(C) Virchow
(D) Hooke

Correct Answer: A

Explanation:

Schwann concluded that animals are made of cells.

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Question (15)

QN007753

Which scientist concluded that plants are composed of cells?

(A) Schwann
(B) Schleiden
(C) Hooke
(D) Virchow

Correct Answer: B

Explanation:

Schleiden stated that plants are composed of cells.

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Question (16)

QN007754

If a multicellular organism has 5 organs in one system and 4 such systems working together, how many systems are present in total?

(A) 5
(B) 4
(C) 9
(D) 20

Correct Answer: B

Explanation:

The organism contains 4 organ systems.

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Question (17)

QN007755

Which of the following is NOT part of cell theory?

(A) Cells are the basic unit of life
(B) Cells arise from pre-existing cells
(C) All organisms are made of cells
(D) Viruses are made of cells

Correct Answer: D

Explanation:

Viruses are non-cellular.

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Question (18)

QN007756

A scientist observed box-like compartments in cork. These were actually:

(A) Vacuoles
(B) Dead cells
(C) Chloroplasts
(D) Nuclei

Correct Answer: B

Explanation:

Cork cells observed by Hooke were dead cells.

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Question (19)

QN007757

Which type of organism consists of only one cell?

(A) Multicellular
(B) Colonial
(C) Unicellular
(D) Tissue-level

Correct Answer: C

Explanation:

Unicellular organisms have only one cell.

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Question (20)

QN007758

The functional activities of an organism are performed by:

(A) Organs alone
(B) Cells
(C) Tissues only
(D) Molecules only

Correct Answer: B

Explanation:

Cells perform all basic life processes.

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Question (11)

Which scientist observed living cells for the first time?

Explanation:

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Question (12)

Cell theory applies to:

Explanation:

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Question (13)

Which level of organization is formed by a group of tissues?

Explanation:

Link:

Question (14)

Which scientist concluded that animals are made of cells?

Explanation:

Link:

Question (15)

Which scientist concluded that plants are composed of cells?

Explanation:

Link:

Question (16)

If a multicellular organism has 5 organs in one system and 4 such systems working together, how many systems are present in total?

Explanation:

Link:

Question (17)

Which of the following is NOT part of cell theory?

Explanation:

Link:

Question (18)

A scientist observed box-like compartments in cork. These were actually:

Explanation:

Link:

Question (19)

Which type of organism consists of only one cell?

Explanation:

Link:

Question (20)

The functional activities of an organism are performed by:

Explanation:

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