Nutrition in plants Flashcards
1
Q
What is photosynthesis?
A
- a process in which light absorbed by chlorophyll is converted to chemical energy
2
Q
What is chemical energy used for?
A
- synthesize glucose from water and carbon dioxide
3
Q
What is released as a product?
A
- oxygen
4
Q
What is the word equation for photosynthesis?
A
- Carbon dioxide + Water -> Glucose + Oxygen + Water
5
Q
What happens in the light-dependant stage?
A
- Light energy is absorbed by chlorophyll and then converted into chemical energy
6
Q
What else in light energy used for?
A
- used to split water molecules into hydrogen and oxygen atoms
- 12 molecules of water are split to yield 6 molecules of oxygen and 24 atoms of hydrogen
7
Q
How is oxygen released out of the leaf?
A
- through the stomata
8
Q
What is photolysis?
A
- Light energy is also used to split water molecules into oxygen and hydrogen atoms
9
Q
What happens in the light-independant stage?
A
- produces energy needed for Hydrogen being released during photolysis is used to reduce carbon dioxide to glucose
