Photo. Cards 2 Flashcards
1
Q
- Photosynthesis occurs in 2 stages. Name each stage and where they take place
A
light-dependent reactions and the Calvin cycle (light-independent reactions)
Light-dependent reactions, take place in the thylakoid membrane
Light-independent reactions, take place in the stroma of chloroplast in photosynthetic organisms
2
Q
- The two reactants of photosynthesis are carbon dioxide and water. In which reaction is each used?
A
Light-dependent Reaction-water
Light-independent Reaction-carbon dioxide
3
Q
- What is the purpose of the light dependent reaction?
A
To convert solar energy into chemical energy in the form of NADPH and ATP
4
Q
- What happens to the high energy electrons that are produced in photosystem 1?
A
They are carried to chemical reactions somewhere else in the cell
5
Q
- What is the name of the enzyme in the thylakoid membrane that is used to produce ATP?
A
ATP synthase
6
Q
- Where does the Calvin cycle take place?
A
Stroma of chloroplast, in photosynthetic organisms
7
Q
- Look in your book at the end of Chapter 8 section 3 and explain the 3 factors that affect the rate of photosynthesis
A
Light, H2O, temp
8
Q
- What powers the rotation of the ATP synthase molecule?
A
Hydrogen ions
9
Q
- What splits off mid-cycle in the Calvin cycle to create sugar molecules?
A
Two 3-carbon molecules
10
Q
- What is the overall purpose of the Calvin cycle?
A
To make organic products plants need
