Plants carry out photosynthesis only during the day and respiration only at night. [1 mark]

(a) True
(b) False

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Solution

Option: (b) False. (1 mark)

Plants prepare their own food through the process of photosynthesis. Photosynthesis requires sunlight and hence, occurs only during the day.

However, respiration is a process that generates energy for the plant. Since energy is required for survival and to perform all functions, plants respire both during day as well as night.

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Question 7 (ii)
Mark ‘T’ if the statement is true and ‘F’ if it is false:
(ii) Plants carry out photosynthesis only during the day and respiration only at night.

Mark ‘T’ if the statement is true and ‘F’ if it is false:

(i) During heavy exercise the breathing rate of a person slows down. (T/F)

(ii) Plants carry out photosynthesis only during the day and respiration only at night. (T/F)

(iii) Frogs breathe through their skins as well as their lungs. (T/F)

(iv) The fishes have lungs for respiration. (T/F)

(v) The size of the chest cavity increases during inhalation. (T/F)

Q. When do plants respire?
(a) only at night
(b) only during day time
(c) only at sunset and sunrise
(d) throughout the day and the night

Q. Plants carry out photosynthesis only during the day and respiration only at night.

Mark T if the statement is True and F if it is False.

Plants carry out photosynthesis only during the day and respiration only at night.

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Plants carry out photosynthesis only during the day and respiration only at night. [1 mark] (a) True (b) False

Plants carry out photosynthesis only during the day and respiration only at night. [1 mark]

(a) True
(b) False