Biology · Bioenergetics

The dark reaction, or light-independent reaction, occurs in the stroma of the chloroplast and involves the fixation of carbon dioxide through the Calvin cycle. This process does not directly require light and can occur in the absence of light.

The light reaction, or light-dependent reaction, involves the absorption of light by chlorophyll in photosystems I and II. While water is split, and oxygen is released, carbon dioxide is not fixed during the light reaction.

Correct. The dark reaction, or light-independent reaction, occurs in the stroma of the chloroplast and involves the fixation of carbon dioxide through the Calvin cycle. This process does not directly require light and can occur in the absence of light.

Aerobic respiration is the process by which cells convert glucose into ATP, utilizing oxygen. Carbon dioxide is produced as a byproduct during the Krebs cycle but is not fixed in this process.

Anaerobic respiration is a process that occurs in the absence of oxygen, leading to the partial breakdown of glucose. Carbon dioxide may be produced, but it is not fixed as in the dark reaction of photosynthesis.