Question

hb unit 2.1 cell energy and photosynthesis quiz 2025
as a result of photosynthesis
our atmosphere is now rich in oxygen gas
plants convert chlorophyll into protein
animals can get energy directly from the sun
abundant quantities of carbon dioxide are available to fuel the calvin cycle

Explanation:

Photosynthesis is the process by which plants use sunlight, carbon - dioxide, and water to produce glucose and oxygen. Oxygen is released into the atmosphere as a by - product, making our atmosphere rich in oxygen gas. Chlorophyll is a pigment used in the light - dependent reactions and is not converted into protein during photosynthesis. Animals cannot get energy directly from the sun as they are heterotrophs. While carbon dioxide is needed for the Calvin cycle, photosynthesis does not primarily result in an abundance of carbon dioxide for it; rather, it uses carbon dioxide.

Answer:

our atmosphere is now rich in oxygen gas