Chapter 7 Photosynthesis

Question 1

What are the tiny holes in leaves that allow gas exchange called?

Answer 1

Stomata

Question 2

What are the beds of pigments that harvest light called, and where are they located?

Answer 2

Photosystems

Question 3

What is the function of carbon dioxide in the Calvin Cycle?

Answer 3

Carbon source for sugars

Question 4

If a pigment is red, what happens to the blue light that hits it?

Answer 4

It is absorbed

Question 5

What two items do the light reactions provide to the Calvin Cycle?

Answer 5

ATP and NADPH

Question 6

If a plant was removing carbon dioxide from the air during the day, could it be a C4 plant?

Answer 6

Yes (or C3)

Question 7

Which type of plant pulls in CO2 when it is dark?

Answer 7

CAM

Question 8

Choloroplast

Answer 8

Organelle where photosynthesis takes place

Question 9

Where does Calvin Cycle take place in the chloroplast?

Answer 9

Stroma

Question 10

Chlorophyll appears green because it _____green light

Answer 10

Reflects

Question 11

Reaction Center

Answer 11

The place where the electrons end up in the photosystems

Question 12

What are the two outputs of photosynthesis?

Answer 12

G3P (1/2 a glucose) and oxygen

Question 13

Name the two stages of photsynthesis, and where each occurs in the chloroplast

Answer 13

Light reactions-thylakoid membrane in the grana; Calvin cycle - stroma of the chloroplast

Question 14

What is special about the enzyme rubisco?

Answer 14

It fixes CO2 for the Calvin Cycle

Question 15

What is the function of NADP+?

Answer 15

Final electron acceptor for the electron transport chain

Question 16

What kind of phosphorylation is used to make ATP in the light reactions?

Answer 16

Electron transport chain with ATP synthase

Question 17

What is the function of water in the light reactions?

Answer 17

Source of electrons

Question 18

During the day, are most plants doing photosynthesis only, cellular respiration only, or both?

Answer 18

Both

Question 19

Autotroph

Answer 19

Producer

Question 20

How many compartments are in the chloroplast?

Answer 20

3

Question 21

What are the inputs of the light reactions?

Answer 21

water, light, NADP+, ADP

Question 22

Which comes first, photosystem I or photosystem II?

Answer 22

Photosystem II

Question 23

ATP is generated during light reactions by _____?

Answer 23

Electron transport chain with ATP synthase

Question 24

Photosynthesis

Answer 24

Produces glucose from light and CO2