What are the two main stages of photosynthesis?

Photosynthesis Mechanisms and Processes

Interactive Video
•

Liam Anderson
•
Biology, Science
•
9th - 12th Grade
•
Hard
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oxidative phosphorylation and photolysis
Electron transport chain and fermentation
Glycolysis and Krebs cycle
Light-dependent reactions and Calvin cycle
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary role of the thylakoid membrane in photosynthesis?
To absorb carbon dioxide
To produce chlorophyll
To facilitate electron transfer and create a hydrogen ion gradient
To store glucose
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the energy from excited electrons used in the thylakoid membrane?
To produce oxygen directly
To absorb more light
To pump hydrogen ions and create a gradient
To synthesize glucose
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of the hydrogen ion concentration gradient in the thylakoid lumen?
It helps in the synthesis of glucose
It drives the production of ATP
It absorbs more light
It releases oxygen
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which pigment is responsible for donating electrons in the light-dependent reactions?
Carotenoids
P680 chlorophyll
P700 chlorophyll
Xanthophylls
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the byproduct of water oxidation in the light-dependent reactions?
NADPH
Oxygen
Glucose
Carbon dioxide
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is Photosystem II named as such despite being the starting point of the light-dependent reactions?
It was discovered after Photosystem I
It absorbs light at a higher wavelength
It is located in a different part of the chloroplast
It produces more ATP
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main function of Photosystem I in the light-dependent reactions?
To split water molecules
To reduce NADP+ to NADPH
To absorb carbon dioxide
To produce ATP
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of ATP synthase in the light-dependent reactions?
To reduce NADP+ to NADPH
To convert ADP to ATP using the hydrogen ion gradient
To absorb light energy
To split water molecules
10.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which molecule is reduced to form NADPH in the light-dependent reactions?
NADP+
FAD
NADH
ATP
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