Question

during the day, plants produce _ by splitting water molecules in the light dependent reactions of photo synthesis. at the same time, plants use cellular respiration to produce some of the _ needed by the light-independent reactions to make sugars. during the night, plants produce _ because _ takes place​

Answer 1

oxygen, CO2, only CO2 not O2, only cellular respiration takes place.

Answer 2

The correct answer will be:

1. During day, plants produce- oxygen

2. Plants undergo cellular respiration and produce- carbon dioxide

3.During night time, plants produce- only carbon dioxide

4. Because- only cellular respiration takes place.

Step-by-step explanation:

During day time plants undergo the process of photosynthesis where light excites the the electrons and starts flow of electrons via Z-scheme. This flow of electrons creates resonance effect at PS II and causing splitting of water which results in the formation of O₂ as by-product. Plants cells undergo cellular respiration at the same time to produce ATP and produce CO₂ during link reaction and krebs cycle of respiration.

During night time plants do not photosynthesize due to no sunlight and cells perform only respiration process to produce ATP thereby producing carbon dioxide as the by-product.

Thus, oxygen, carbon dioxide, only carbon dioxide, only cellular respiration options are the correct answer.