Chapter 8 Photosynthesis

Question 1

Capturing of light energy from the sun and converting it to chemical energy stored in sugar and other molecules.

Answer 1

Photosynthesis

Question 2

“self-feeders”; produce food for themselves from CO2 and inorganic substances. Also called producers.

Answer 2

Autotrophs

Question 3

Organisms that use sunlight as a source of energy to make food.

Answer 3

Photoautotroph

Question 4

Organisms that use chemicals, or inorganic substances to make food. Do NOT use sunlight.

Answer 4

Chemoautotrophs

Question 5

Obtain energy by consuming the remains of dead organisms such as carcasses, feces, and fallen leaves.

Answer 5

Decomposers

Question 6

Obtain energy by consuming other organisms. Consumers.

Answer 6

Heteroautotroph

Question 7

What is the chemical formula for photosynthesis?

Answer 7

6CO2 + 6H2O –(light energy)–> C6H12O6 +6O2

Question 8

Statement of photosynthesis:

Answer 8

Photosynthesis uses CO2 and H2O plus light energy to make sugar and release oxygen.

Question 9

What are the two stages of Photosynthesis?

Answer 9

Light reactions and the Calvin Cycle.

Question 10

A measure of the amount of energy in a specific wavelength of light is…

Answer 10

A photon

Question 11

Pigments are…

Answer 11

Substances that absorb visible light

Question 12

Where do light reactions happen in chlorophyll?

Answer 12

In the thylakoid membrane

Question 13

How many photosystems are in the light reactions? Which one comes first?

Answer 13

2 Photosystems. Photosystem II comes first, then Photosystem I.