Question

1. the cell organelle where the reactions of photosynthesis occur is called

a) cell wall
b) chloroplast
c) mitochondria
d) cell membrane

1. inside each of the cell organelles are special structures that contain the green pigment called ____________.

this pigment absorbs sunlight needed to power the reactions of photosynthesis.

1. the level of carbon dioxide in our atmosphere has been increasing dramatically. it has been said that growing green plants would help slow this increase. the best explanation for this is that plants

a) serve as food for herbivores
b) serve as a nonrenewable resource
c) remove carbon dioxide from the atmosphere during respiration
d) remove carbon dioxide from the atmosphere during photosynthesis

Explanation:

1. Photosynthesis occurs in chloroplasts; other options have different functions.
2. Chlorophyll is the green pigment in chloroplasts that absorbs sunlight for photosynthesis.
3. Plants take in CO₂ during photosynthesis, reducing atmospheric CO₂ levels.

Answer:

1. b) chloroplast
2. chlorophyll
3. d) remove carbon dioxide from the atmosphere during photosynthesis