EVERYDAY SCIENCE

Detailed explanation-1: -Carbon dioxide (CO2) is a product of respiration and not photosynthesis.

Detailed explanation-2: -The dark reaction occurs outside of the thylakoids. In this reaction, the energy from ATP and NADPH are used to fix carbon dioxide (CO2). So NADH is not a product of the light reaction of photosynthesis.

Detailed explanation-3: -Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by-products and ATP is energy that is transformed from the process.

Detailed explanation-4: -Carbon dioxide is not released during photosynthesis, but small amounts of that gas are emitted both day and night as a by-product of cellular respiration.

Detailed explanation-5: -Photosynthesis is a process that uses organic chemicals like carbon dioxide and water to synthesize glucose in the presence of light. This reaction occurs inside the living plants in their green leaves. The end products of photosynthesis are glucose, oxygen, and water.