Question

photosynthesis can be broken down into two basic mechanisms (\photo\ and \synthesis\). which sequence accurately describes these two mechanisms?
photo refers to reliance on the pigment chlorophyll; synthesis refers to carbon fixation.
photo refers to the absorption of light; synthesis refers to the release of carbon dioxide.
photo refers to the absorption of light; synthesis refers to carbon fixation.
photo refers to carbon fixation with light; synthesis refers to the presence of water to make oxygen.
photo refers to carbon fixation with light; synthesis refers to the absorption of carbon dioxide.

Explanation:

In photosynthesis, "photo" is related to light - absorption which is used to drive the process. "Synthesis" refers to carbon - fixation where carbon dioxide is converted into organic compounds. The first option wrongly emphasizes chlorophyll instead of light - absorption. The second option is incorrect as synthesis is not about carbon dioxide release. The fourth and fifth options have wrong associations for "photo" and "synthesis".

Answer:

Photo refers to the absorption of light; Synthesis refers to carbon fixation.