Photosnythesis Flashcards
1
Q
Light Dependent - Photosynthesis
A
- Sunlight is absorbed by chlorophyll in the thylakoid membrane and loses an electron which causes water to split into oxygen gas and hydrogen ions
- Electrons are transferred to the electron transport chain where NADP+ is loaded with H+ ions to become NADPH
- H+ ions cross from the lumen to the stroma (where the next stage takes place) via ATP
synthase which catalyses the formation of ATP from ADP and Pi
2
Q
Light Independent Stage -Photosynthesis
A
- Rubisco fixes carbon dioxide (taken in via stomata) to RuBP in the first step of the Calvin cycle
- Several steps involving ATP and NADPH as coenzymes build glucose from carbon dioxide
3
Q
Overall Photosynthesis Equation
A
water + carbon dioxide → oxygen + glucose + water
4
Q
Where does the Light dependent stage of photosynthesis occur?
A
Thylakoid membrane
5
Q
Where does the Light Independent stage of photosynthesis occur?
A
Stroma fluid in chloroplast
6
Q
C3 Plants
A
7
Q
C4 Plants
A
8
Q
CAM plants
A
9
Q
Inputs of Light Dependent Stage
A
18 ADP + 18Pi
12 NADP+
12 H20
Sunlight
Chlorophyll
10
Q
Outputs of Light Dependent Stage
A
12 NADPH
12 ATP
6 02
6 H2O
11
Q
Inputs of Light Independent Stage
A
12 ATP
12 NADPH
6 CO2
12
Q
Outputs Of Light Independent Stage
A
6 C02
C6H12O6 (GLUCOSE)
