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Question (21)

QN003011

Amoeba can survive as a single cell because it can perform:

(A) only respiration
(B) only movement
(C) all life processes
(D) only digestion

Correct Answer: C

Explanation:

Amoeba performs all life functions.

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Question (22)

QN003012

Which scientist observed living microorganisms for the first time?

(A) Robert Hooke
(B) Antonie van Leeuwenhoek
(C) Newton
(D) Mendel

Correct Answer: B

Explanation:

Leeuwenhoek observed living microorganisms.

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Question (23)

QN003013

A cell without a nucleus would most likely:

(A) control activities normally
(B) lose control over activities
(C) form tissues rapidly
(D) become multicellular immediately

Correct Answer: B

Explanation:

Nucleus controls cell activities.

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Question (24)

QN003014

Which of the following structures allows substances to enter and leave the cell?

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

Correct Answer: A

Explanation:

Cell membrane regulates movement of substances.

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Question (25)

QN003015

If a tissue contains 500 cells and each cell divides once, how many cells will be present afterward?

(A) 500
(B) 750
(C) 1000
(D) 1500

Correct Answer: C

Explanation:

500 × 2 = 1000.

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Question (26)

QN003016

Which statement correctly defines a cell?

(A) A non-living particle
(B) The structural and functional unit of life
(C) A part found only in plants
(D) A large tissue structure

Correct Answer: B

Explanation:

Cell is the structural and functional unit of life.

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Question (27)

QN003017

Which structure gives shape and support to plant cells?

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

Correct Answer: C

Explanation:

Cell wall gives support and shape.

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Question (28)

QN003018

In multicellular organisms, similar cells combine together to form:

(A) organs
(B) tissues
(C) organ systems
(D) organisms

Correct Answer: B

Explanation:

Similar cells form tissues.

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Question (29)

QN003019

Which of the following is found in both plant and animal cells?

(A) Cell wall
(B) Chloroplast
(C) Nucleus
(D) Large central vacuole only

Correct Answer: C

Explanation:

Both plant and animal cells contain nucleus.

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Question (30)

QN003020

If a cell membrane gets damaged completely, the cell may die because:

(A) substances cannot be regulated properly
(B) the cell wall becomes stronger
(C) tissues stop forming immediately
(D) the nucleus disappears instantly

Correct Answer: A

Explanation:

Cell membrane regulates movement of substances.

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Question (21)

Amoeba can survive as a single cell because it can perform:

Explanation:

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Question (22)

Which scientist observed living microorganisms for the first time?

Explanation:

Link:

Question (23)

A cell without a nucleus would most likely:

Explanation:

Link:

Question (24)

Which of the following structures allows substances to enter and leave the cell?

Explanation:

Link:

Question (25)

If a tissue contains 500 cells and each cell divides once, how many cells will be present afterward?

Explanation:

Link:

Question (26)

Which statement correctly defines a cell?

Explanation:

Link:

Question (27)

Which structure gives shape and support to plant cells?

Explanation:

Link:

Question (28)

In multicellular organisms, similar cells combine together to form:

Explanation:

Link:

Question (29)

Which of the following is found in both plant and animal cells?

Explanation:

Link:

Question (30)

If a cell membrane gets damaged completely, the cell may die because:

Explanation:

Link:

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