8.1: Photosynthesis converts light energy to the chemical energy of food

Question 1

chloroplast

Answer 1

The photosynthetic organelle

in the plant

Question 2

mesophyll

Answer 2

the tissue in the interior of the leaf and contain chloroplasts

Question 3

stomata

Answer 3

microscopic pores where CO2 enters and O2 leaves

Question 4

Stroma

Answer 4

dense fluid on the interior of chloroplast/cytosol

Question 5

Thylakoids

Answer 5

In the stroma and is the third membrane system, made up of these sacs

Question 6

Thylakoid space

Answer 6

inside the thylakoids

Question 7

Grana

Answer 7

Refers to stacks of thylakoids

Question 8

Chlorophyll

Answer 8

the green pigment that gives leaves their color, resides in the thylakoid membrane of chloroplasts, absorbs light energy

Question 9

Summary Reaction

Answer 9

6CO2 + 12H2O + Light energy→ C6H12O6 + 6O2 + 6H2O

Question 10

Simplified Reaction

Answer 10

6CO2 + 6H2O + Light energy→ C6H12O6 + 6O2

Question 11

What molecule is responsible for O2

Answer 11

H2O

Question 12

General steps of light reactions

Answer 12

• Split H2O
• Releases O2
• Reduces the electron acceptor, NADP+→ NADPH
• photophosphorylation: where ATP is generated from ADP and phosphate group, using light

Question 13

carbon fixation

Answer 13

the initial incorporation of carbon into organic compounds

Question 14

What are the products of light reaction used for

Answer 14

ATP and NADPH are used to reduce the carbon dioxide into sugar