Question

What is true about plants?
Answer

They only perform photosynthesis and never cellular respiration.

They perform photosynthesis continuously and cellular respiration at night.

They perform photosynthesis during the day and cellular respiration at night.

They perform photosynthesis during the day and cellular respiration continuously.

Answer 1

should be either the third or second

Answer 2

2 nd one i think...coz photosynhesis occurs in 2 stages,, light reaction during day and dark reaction at night

Answer 3

the answer is 4th one. cellular respiration is performed continuously in almost all living organisms. the light reactions and dark reactions of photosynthesis don't refer to the time when those reactions happen. dark reactions mean the reactions which don't need sunlight but need products of light reactions. these terms are used to differentiate those reactions in concern with their light requirements.