Chapter 10

Question 1

What is photosynthesis?

Answer 1

the process that converts solar energy into chemical energy

Question 2

How do organisms obtain organic compounds?

Answer 2

autotrophic or heterotrophic nutrition

Question 3

Autotrophs

Answer 3

-sustain themselves without eating anything derived from other organisms
-producers of the biosphere; producing organic molecules from CO2 and other inorganic molecules

Question 4

Photoautotrophs

Answer 4

use energy of sunlight to make organic molecules(most plants)

Question 5

Where does photosynthesis occur?

Answer 5

plants, algae, certain other protists and some prokaryotes

Question 6

Heterotrophs

Answer 6

-obtain their organic material from other organisms
-consumers of the biosphere(feed on other organisms, special types of heterotrophs are “decomposers”)
-most depend on photoautotrophs for food and O2

Question 7

What is the endosymbiont theory?

Answer 7

suggests that original chloroplast was a photosynthetic prokaryote that lived inside eukaryotic cell