Chapter 9 - Photosynthesis: Capturing Light Energy

Question 1

Chloroplasts

Answer 1

Organelles within plants that contain chlorophyll

Question 2

Main location of chloroplasts

Answer 2

Mesophyll

Question 3

Mesophyll

Answer 3

A layer with many air spaces and very high concentratio of water vapor

Question 4

Stomata

Answer 4

Microscopic pores of leaves

Question 5

Stroma

Answer 5

Fluid-filled region of inner membrane of chloroplast

Question 6

Thylakoids

Answer 6

An interconnected system of flattened, saclike, membranous structures inside the choroplast

Question 7

Chlorophyll a

Answer 7

the pigment that starts the light-dependent reactions of photosynthesis

Question 8

Colors/wavelengths most readily absorbed by plants

Answer 8

red (647 to 760 nm) and blue (422 to 492 nm)

Question 9

Two phases of photosynthesis

Answer 9

light-dependent reactions and carbon fixation reactions

Question 10

Products of light-dependent reactions

Answer 10

ATP and NADPH

Question 11

Carbon Fixation

Answer 11

REDUCTION reactions of photosynthesis in which carbon from carbon dioxide becomes incorporated into organic molecules, leading to the production of carbohydrate

Question 12

Light-dependent reaction

Answer 12

Reactions of photosynthesis in which light energy absorbed by chlorophyll is used to synthesize ATP and usually NADPH

Question 13

Noncylic electron transport produces

Answer 13

ATP and NADPH

Question 14

Cyclic electron transport produces ____ but no _____

Answer 14

ATP; NADPH

Question 15

Calvin Cycle

Answer 15

Cyclic series of reactions in the chloroplast stroma in photosynthesis; fixes carbon dioxide and produces carbohydrate

Question 16

Carbon Dioxide Uptake

Answer 16

1st phase of Calvin cycle consisting of single reaction in which a molecules of carbon dioxide reacts with a phosphorylated five carbon compound, RuBP

Question 17

Carbon reduction

Answer 17

2nd phase of Calvin cycle consisting of two steps in which the energy and reducing power from ATP and NADPH are used to convert the PGA molecules to G3P

Question 18

RuBP generation

Answer 18

Last phase of Calvin cycle

Question 19

When do CAM plants fix carbon dioxide?

Answer 19

At night

Question 20

Where does carbon fixation take place in the C4 plants?

Answer 20

In bundle sheath

Question 21

Where does carbon fixation take place in C3 plants?

Answer 21

In the mesophyll

Question 22

What does PEP carboxylase do?

Answer 22

it catalyzes the reaction by which carbon dioxide reacts with the three carbon compound PEP, forming oxaloacetate