2.4 Photosynthesis

Question 1

What is photosynthesis?

Answer 1

process of capturing sunlight and converting it into usable energy sources ATP and NADPH

Question 2

Where does photosynthesis occur?

Answer 2

chloroplasts

Question 3

What are chloroplasts?

Answer 3

double membrane enclosed organelles that house the photosynthetic pigment chlorophyll

Question 4

What types of cells contain chloroplasts?

Answer 4

plants and algae

Question 5

Do animal cells contain chloroplasts?

Answer 5

no

Question 6

What are the two steps of photosynthesis?

Answer 6

light and dark reactions

Question 7

What is the light reaction of photosynthesis known as?

Answer 7

photophosphorylation

Question 8

What is a general overview of photophosphorylation?

Answer 8

converting light energy into chemical energy to be used by the cell in forms of ATP and NADPH

Question 9

Where do the photophosphorylation reactions occur?

Answer 9

in membrane of chloroplasts

Question 10

What is the main function of the light reaction of photosynthesis?

Answer 10

generate a proton gradient concentration to produce ATP

Question 11

What is the dark reactions of photosynthesis known as?

Answer 11

Calvin cycle

Question 12

What is the general overview of the Calvin cycle?

Answer 12

use the ATP and NADPH generated in light reaction to convert carbon dioxide and water into organic carbon compounds

Question 13

What is carbon fixation?

Answer 13

the process of producing organic carbon compounds and useful cabohydrates

Question 14

Is light required for the Calvin cycle?

Answer 14

no

Question 15

What does the Calvin cycle produce?

Answer 15

glyceraldehyde 3-phosphate

Question 16

What will the G3P produced by the dark reactions eventually turn into?

Answer 16

glucose

Question 17

What happens to the NADPH and ATP made during the light reaction during the dark reactions?

Answer 17

turned back into NAPD and ADP which are reused in the next light reaction

Question 18

How many turns or cycles does the Calvin cycle require to generate one molecule of glucose?

Answer 18

six turns

Question 19

What are the reactants in the Calvin cycle chemical equation?

Answer 19

6 CO2
18 ATP
12 NADPH
12 H20

Question 20

What are the products in the Calvin cycle chemical equation?

Answer 20

one glucose
18 ADP
12 NADP