Photosynthesis Flashcards
1
Q
What is photosynthesis controlled by?
A
Enzymes
2
Q
Stage 1 Name
A
Light Reaction / Photolysis
3
Q
Stage 2 Name
A
Carbon Fixation
4
Q
What happens in light reaction?
A
light energy from the sun is used to split water into oxygen and hydrogen.
5
Q
Where does the oxygen go?
A
Excess oxygen diffuses out of cell and released into the air.
6
Q
Where does Hydrogen go?
A
Used in stage 2.
7
Q
Light Energy
A
Absorbed by the pigment chlorophyll, which is in the chloroplast of the cell. Then converted into chemical energy in the form of ATP.
8
Q
Carbon Fixation
A
Hydrogen combines with carbon dioxide using ATP which produces glucose.
9
Q
What can glucose be used for?
A
- Used in respiration
- Converted into storage starch
- Converted into structural cellulose
10
Q
Limiting factors of Photosynthesis
A
- Light intensity
- Temperature
- Carbon dioxide concentration
