Photosynthesis

Question 1

What is a Heterotroph?

Answer 1

An organism that gets nutrients from external sources

Question 2

What is an Autotroph?

Answer 2

Organism that makes nutrients internally

Question 3

What is the function of Chlorophyll Pigments?

Answer 3

To absorb photons and energize electrons

Question 4

What is the primary light absorbing pigment?

Answer 4

Chlorophyll a

Question 5

What wavelengths of light does Chlorophyll a absorb?

Answer 5

Red and violet

Question 6

What is the function of Chlorophyll a?

Answer 6

Help enzymes strip H from the water in photosystem II, and donate the stripped electron to the ETC

Question 7

What is the job of Chlorophyll b and Carotenoids?

Answer 7

To expand on the duties of Chlorophyll a

Question 8

What are the 2 stages of Photosynthesis?

Answer 8

Light Reactions and the Calvin Cycle (light independent reactions)

Question 9

Where do Light Reactions take place?

Answer 9

In the ETC embedded in the Thylakoid Membrane

Question 10

What are the inputs for Light Reactions?

Answer 10

Light photons and H2O

Question 11

What are the products of Light Reactions?

Answer 11

ATP and NADH

Question 12

Where does the Calvin Cycle occur?

Answer 12

In the Stroma

Question 13

What are the inputs for the Calvin Cycle?

Answer 13

CO2, ATP, and NADH

Question 14

What are the products of the Calvin Cycle?

Answer 14

C3H6O3, or G3P

(3 turns makes glucose)

Question 15

What does it take to get 1 glucose molecule out of the Calvin Cycle?

Answer 15

3 turns of the Calvin Cycle

Question 16

What is the waste product of the Calvin Cycle?

Answer 16

O2

Question 17

When photons are absorbed by the chlorophyll pigments, where does this energy go?

Answer 17

Into the electrons stripped from O2 and H+

Question 18

After electrons are energized by the photosystems, what is created after an ETC occurs?

Answer 18

Additional H+, which makes a chemiosmotic gradient that has to be dealt with via the ATP synthase