Photosynthesis

Question 1

Pigment

Answer 1

light-absorbing molecules used by plants to gather the sun’s energy

Question 2

Chlorophyll

Answer 2

principal pigment of plants and other photosynthetic organisms

Question 3

Thylakoid

Answer 3

saclike photosynthetic membranes found in chloroplasts

Question 4

Stoma

Answer 4

small opening in the epidermis of a plant that allows carbon dioxide, water, and oxygen to diffuse into and out of the leaf

Question 5

NADP+

Answer 5

carrier molecule that transfers high-energy electrons from chlorophyll to other molecules

Question 6

light-dependent reactions

Answer 6

set of reactions in photosynthesis that use energy from light to produce ATP and NADPH

Question 7

light-independent reactions

Answer 7

set of reactions in photosynthesis that do not require light; energy from ATP and NADPH is used to build high-energy compounds such as sugar; also called the Calvin cycle

Question 8

photosystem

Answer 8

cluster of chlorophyll and proteins found in thylakoids

Question 9

electron transport chain

Answer 9

series of electron carrier proteins that shuttle high-energy electrons during ATP-generating functions

Question 10

ATP synthase

Answer 10

cluster of proteins that span the thylakoid membrane and allow hydrogen ions (H+) to pass through it

Question 11

Calvin Cycle

Answer 11

set of reactions in photosynthesis that do not require light; energy from ATP and NADPH is used to build high-energy compounds such as sugar; also called the light-independent reactions