1. Oxidative phosphorylation is called that because of _________ which provide(s

Question

1. Oxidative phosphorylation is called that because of _________ which provide(s) the energy for ATP synthesis

a.      The loss of electrons by ATP

         b.      O2

c.      The loss of electrons by ADP

         d.      The redox reactions of catabolism and electron transport

         e.      Hydrolysis of ATP

2.a You are investigating the aerobic catabolism of the amino acid alanine by using radioactively labeled alanine. During the first stage in the catabolism you find that radioactive pyruvate is formed.

2b.      In the above question (#3) no ATP is produced during the first stage. How many ATPs will be produced for each alanine which is catabolized through these 2 stages?

         a.      0

         b.      1

         c.      2

         d.      3

         e.      4

3. Which of the following statements concerning the rate of a reaction is correct?

         a.      The activation energy (G*) is sometimes negative

         b.      For a reversible reaction, the activation energy (G*) can also affect the Keq

         c.      The rate constant (k) is sometimes negative

         d.      The rate often increases with increasing temperature

         e.      None of the above

Explanation / Answer

1.  d.      The redox reactions of catabolism and electron transport- with the help of membrane proteins in the inner mitochondrial membrane.

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