Campbell Biology: Chapter 10 Flashcards


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1

What is the conversion of solar energy into chemical energy performed by autotrophs?

Photosynthesis

2

Where does photosynthesis mostly occur?

Mesophyll (tissue in the interior of the leaf)

3

The green pigment located within chloroplasts is called what?

Chlorophyll

4

CO2 enters a leaf and O2 exits through pores called __________.

Stomata

5

What is the fluid within the chloroplasts?

Stroma

6

A system of interconnected membranes that divide the stroma from the thylakoid space

Thylakoid membrane

7

Where is chlorophyll located?

Thylakoid membranes

8

Thylakoid membranes that are stacked together are called what?

Grana

9

What are the 2 sets of reactions that make up photosynthesis?

Light reactions and the Calvin Cycle

10

Light is absorbed by chlorophyll and drives the transfer of electrons and hydrogen from water to ______.

NADP+

11

What are the light harvesting units of the thylakoid membrane called?

photosystems

12

What is released when water splits in a light reaction?

Oxygen

13

Where does the Calvin Cycle occur?

Stroma of the chloroplasts

14

The initial incorporation of carbon into organic compounds is called ___________________.

Carbon fixation

15

The Calvin Cycle uses ATP and NADPH to produce what?

Sugar

16

What are the three phases of the Calvin Cycle?

1. Carbon fixation
2. Reduction
3. Regeneration of RuBP

17

For every _____ molecules of CO2 that enter the Calvin Cycle, the net output is one molecule of G3P.

3

18

For each G3P synthesized, the cycle spends how many molecules of ATP and NADPH?

9 molecules of ATP
6 molecules of NADPH

19

What kind of plant
- Uses CO2 directly from the air
- Are very common and widely distributed

C3 Plants

20

What kind of plant...
- Open their stomata only at night to conserve water

CAM plants

21

What kind of plant...
- Close their stomata to save water during hot and dry weather
- Can still carry out photosynthesis

C4 Plants