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Question (1)

QN001681

Respiration in plants is the process in which

(A) food is prepared
(B) water is absorbed
(C) food is broken down to release energy
(D) seeds are formed

Correct Answer: C

Explanation:

Respiration releases energy from food.

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Question (2)

QN001682

Which gas is mainly used by plants during respiration?

(A) Carbon dioxide
(B) Nitrogen
(C) Oxygen
(D) Hydrogen

Correct Answer: C

Explanation:

Plants use oxygen during respiration.

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Question (3)

QN001683

During respiration, plants release

(A) oxygen only
(B) carbon dioxide and energy
(C) chlorophyll
(D) minerals

Correct Answer: B

Explanation:

Respiration releases carbon dioxide and energy.

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Question (4)

QN001684

Which process provides energy for growth and repair in plants?

(A) Photosynthesis
(B) Germination
(C) Respiration
(D) Pollination

Correct Answer: C

Explanation:

Respiration provides energy.

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Question (5)

QN001685

Respiration occurs in

(A) roots only
(B) leaves only
(C) flowers only
(D) all living parts of plants

Correct Answer: D

Explanation:

All living parts of plants respire.

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Question (6)

QN001686

Which of the following confirms the presence of carbon dioxide?

(A) Blue litmus turning red
(B) Lime water turning milky
(C) Iodine turning blue-black
(D) Alcohol becoming colourless

Correct Answer: B

Explanation:

Carbon dioxide turns lime water milky.

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Question (7)

QN001687

In the germinating seeds experiment, lime water turned milky because seeds released

(A) oxygen
(B) nitrogen
(C) carbon dioxide
(D) hydrogen

Correct Answer: C

Explanation:

Germinating seeds release carbon dioxide.

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Question (8)

QN001688

Germinating seeds respire actively because they require energy for

(A) photosynthesis only
(B) growth and development
(C) flower formation only
(D) chlorophyll production only

Correct Answer: B

Explanation:

Germinating seeds need energy for growth.

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Question (9)

QN001689

Which setup is commonly used to demonstrate respiration in germinating seeds?

(A) Coloured water setup
(B) Lime water setup
(C) Iodine test setup
(D) Starch test setup

Correct Answer: B

Explanation:

Lime water setup demonstrates respiration.

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Question (10)

QN001690

Which statement about respiration in plants is correct?

(A) It occurs only during daytime
(B) It occurs only in leaves
(C) It occurs continuously day and night
(D) It occurs only during photosynthesis

Correct Answer: C

Explanation:

Respiration occurs continuously.

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Question (1)

Respiration in plants is the process in which

Explanation:

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Question (2)

Which gas is mainly used by plants during respiration?

Explanation:

Link:

Question (3)

During respiration, plants release

Explanation:

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Question (4)

Which process provides energy for growth and repair in plants?

Explanation:

Link:

Question (5)

Respiration occurs in

Explanation:

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Question (6)

Which of the following confirms the presence of carbon dioxide?

Explanation:

Link:

Question (7)

In the germinating seeds experiment, lime water turned milky because seeds released

Explanation:

Link:

Question (8)

Germinating seeds respire actively because they require energy for

Explanation:

Link:

Question (9)

Which setup is commonly used to demonstrate respiration in germinating seeds?

Explanation:

Link:

Question (10)

Which statement about respiration in plants is correct?

Explanation:

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