Chapter 10: Photosynthesis

Question 1

What is used in generating ATP molecules during photosynthesis?

Answer 1

ATP synthase

Question 2

What are pigments that can absorb light energy in photosynthetic organisms?

Answer 2

Chlorophyll

Question 3

What is the difference in the number of hydrogen ions in the thylakoid lumen compared to the stroma?

Answer 3

1000 fold

Question 4

What is the only type of chlorophyll that participates directly in the light reaction?

Answer 4

Chloraphylla

Question 5

What are organisms called that cannot produce their own chemical energy?

Answer 5

Heterotrophs

Question 6

Electron flow that occurs between photosystem two and one…

Answer 6

Noncyclic

Question 7

What is the color of light energy least useful in photosynthesis?

Answer 7

Green

Question 8

What are the sacs within the stroma that contain chlorophyll and are the specific sites of the light reaction stage of photosynthesis?

Answer 8

Thylakoids

Question 9

What are organisms I can use light energy to produce chemical energy?

Answer 9

Photoautotrophs

Question 10

What is the number of NADPHs required to produce one three carbon sugar in the dark reaction?

Answer 10

Six

Question 11

What is the inner most region of the Chloroplasts and the site of the Calvin cycle?

Answer 11

Stroma

Question 12

What is the enzyme (also known as RUBP carboxylase) that attaches CO2 to the sugar ribulose to start the Calvin cycle of photosynthesis?

Answer 12

Rubisco

Question 13

Byproduct of the first step of the light reaction of photosystem two. Produced by splitting water molecules…

Answer 13

Oxygen (O2)

Question 14

Split in the first step of the light reaction of photosystem II to replenish the electron lost from P680

Answer 14

Water

Question 15

The series of chemical reactions that convert light energy into chemical energy

Answer 15

Photosynthesis

Question 16

The chlorophyll molecule in the center of photosystem two that absorbs light energy at 700nM

Answer 16

P700

Question 17

Organelles found in photosynthetic organisms that are the sites of photosynthesis

Answer 17

Chloroplast

Question 18

Dark reaction in photosynthesis that converts CO2 into three carbon sugars including ATP and NADPH generated in the light reaction

Answer 18

Calvin

Question 19

The order from lowest energy to highest energy of light in the visible light spectrum

Answer 19

ROYGBIV

Question 20

Electron flow that occurs only in photosystem one. Used to generate additional ATP needed for the Calvin cycle.

Answer 20

Cyclic

Question 21

Complex of accessory pigments that transfers late energy to a central core of the pigment

Answer 21

Antenna

Question 22

The number of ATPs required to produce one three carbon sugar in the dark reaction

Answer 22

Nine

Question 23

What is the number of carbons in ribulose?

Answer 23

Five

Question 24

What is the formula for photosynthesis?

Answer 24

6CO2+6H2O ➡️C6H12O6+6O2

Question 25

What are the three modes of acquiring nutrition? Examples of each?

Answer 25

Autotrophic: producers

• Photoautotrophs: use light as an energy source….plants, Cyanobacteria, algae
• Chemoautotrophs: use inorganic stuff…archaebacteria use sulfur

Heterotrophs: consumers….animals, fungi