Enzymes and Photosynthesis (Chapter 7)

Question 1

oxidized in the process of photosynthesis

Answer 1

water

Question 2

cell organelle where photosynthesis takes place

Answer 2

chloroplast

Question 3

light-catching membranes in a chloroplast

Answer 3

thylakoids

Question 4

stacks of thylakoids in a chloroplast

Answer 4

grana

Question 5

energy that travels through space as rhythmic waves

Answer 5

electromagnetic

Question 6

becomes excited when chlorophyll absorbs a photon

Answer 6

electron

Question 7

cycle in which sugar is made

Answer 7

Calvin

Question 8

fluid of the chloroplast where the Calvin cycle occurs

Answer 8

stroma

Question 9

green pigment in a leaf

Answer 9

chlorophyll

Question 10

holes through which carbon dioxide enters a leaf

Answer 10

stomata

Question 11

shorter wavelengths of light have ____ energy than longer wavelengths

Answer 11

more

Question 12

cluster of light-harvesting complexes in a thylakoid

Answer 12

photosystem

Question 13

fixed quantity of light energy

Answer 13

photon

Question 14

process by which plants make food from carbon dioxide and water

Answer 14

photosynthesis

Question 15

color of light is related to its ___

Answer 15

wavelength

Question 16

source of energy for photosynthesis

Answer 16

light

Question 17

incorporation of carbon dioxide into organic compounds

Answer 17

carbon fixation

Question 18

chlorophyll molecule that donates excited electrons

Answer 18

reaction centres

Question 19

yellow-orange pigments in a chloroplast

Answer 19

carotenoids

Question 20

green tissue in the interior of a leaf

Answer 20

mesophyll

Question 21

organism that uses light to make food

Answer 21

photosynthetic autotroph

Question 22

number of main photosynthesis stages

Answer 22

two

Question 23

the main product of photosynthesis

Answer 23

carbohydrates

Question 24

disks found in chloroplasts where light reactions occur

Answer 24

thylakoid

Question 25

energy needed to start a chemical reaction

Answer 25

activation energy

Question 26

the other name for the dark reactions

Answer 26

Calvin cycle

Question 27

starting materials in a reaction

Answer 27

reactants

Question 28

uses molecules from the light reactions to make carbs

Answer 28

dark reactions

Question 29

waste product of the light reactions

Answer 29

oxygen

Question 30

molecules that have color

Answer 30

pigments

Question 31

spaces between thylakoids in chloroplasts where dark reactions occur

Answer 31

stroma

Question 32

source of carbon in carbohydrates

Answer 32

activation energy

Question 33

where light reactions occur

Answer 33

thylakoids

Question 34

products in the photosynthesis reaction

Answer 34

carbohydrates and oxygen

Question 35

light reactions provide the dark reactions with ___

Answer 35

short-term energy

Question 36

enzyme in a chemical reaction serves to change

Answer 36

the activation energy of the reaction