Plants take in carbon dioxide and give out oxygen during respiration.

I & III only

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II & IV only

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Solution

The correct option is B
II & IV only

Plants take in carbon dioxide and give out oxygen only during photosynthesis. During respiration, just like us, they take in oxygen and give out carbon dioxide.

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Similar questions

State true or false.
Plants take in oxygen and give out carbon dioxide during respiration.

(i) In plants, respiration happens during the night time only, while photosynthesis happens during the day.

(ii) In humans, the exchange of gases takes place in the alveoli.

(iii) Haemoglobin has a greater affinity for oxygen than carbon dioxide.

(iv) Aquatic organisms use the oxygen in the surrounding atmosphere for respiration.

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