Biology Questions 27-35

Question 1

27. Photosynthesis occurs in 2 stages. Name each stage and where they take place

Answer 1

Light Dependent Reaction. - Light Independent Reaction
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On the Thylakoid membrane - Outside the Thylakoid membrane
In the stroma

Question 2

28. The two reactants of photosynthesis are carbon dioxide and water. In which reaction is each used?

Answer 2

Water is in Light Dependent Reaction,

Carbon dioxide is in Light Independent Reaction

Question 3

29. What is the purpose of the light dependent reaction?

Answer 3

To produce ATP and NADPH

Question 4

30. What happens to the high energy electrons that are produced in photosystem 1?

Answer 4

They are used to pump hydrogen atoms into the cell.

They Combine with 2H + 2 NADP to form NADPH

Question 5

31. What is the name of the enzyme in the Thylakoids membrane that is used to produce ATP?

Answer 5

ATP Synthase

Question 6

32. Where does the Calvin cycle take place?

Answer 6

Takes place outside the Thylakoids in the Stroma

Question 7

33. Look in your book at the end of Chapter 8 section 3 and explain the 3 factors that affect the rate of photosynthesis.

Answer 7

Temperature, light, and water

Question 8

34. What powers the rotation of the ATP synthase molecule?

Answer 8

The hydrogen ions moving from higher to lower concentrations

Question 9

35. What splits off mid-cycle in the Calvin cycle to create sugar molecules?

Answer 9

Two of the 12 -3 carbon molecules

Question 10

36. What is the overall purpose of the Calvin Cycle?

Answer 10

To produce organic products plants need such as sugar.