Unit 3 photosynthesis Flashcards
1
Q
Photosynthesis
A
The way in which green plants make thee own food
2
Q
Light reactions
A
Light energy fro the sun is trapped by chlorophyll in the chloroplasts and is converted into chemical energy which is used to generate ATP
Water is split to produce hydrogen and oxegen
Oxegen diffuses out of the cell
3
Q
Carbon fixation
A
Is a series of enzyme controlled reactions, which use hydrogen and ATP (from light reactions) with carbon dioxide to produce sugar
4
Q
What can the sugar be used for
A
Cellulose
Stored as starch
5
Q
Limiting factors
A
Carbon dioxide concentration
Light intensity
Temperature
