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Chapter 10:Questions
Chapter 10 (Photosynthesis) of Biological science fourth edition)
5
Biology
Undergraduate 1
10/13/2011

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Term
Van Niel's experiments with purple sulfur bacteria led to what hypothesis?
Definition
During plant photosynthesis, the oxygen gas released comes from water.
Term
Isolated thylakoids were incubated in an acidic solution at pH 4 until the pH was equilibrated across the thylakoid membrane. The thylakoids were then transferred to a buffer at pH 8 with ADP and inorganic phosphate. ATP was synthesized. Did this experiment require light to generate the ATP?
Definition
No, because ATP synthesis depends only on the presence of a hydrogen ion gradient and does not require light directly.
Term
Rubisco differs from PEP carboxylase in that _______.
Definition
Rubisco can use oxygen gas as a substrate.
Term
The primary biochemical outcome of the activity of photosystem I is to ________.
Definition
reduce NADP+
Term
The sequestering of carbon in CAM plants helps them to survive by _______.
Definition
allowing carbon dioxide to be gathered and used at different times of the day
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