Practice Exam 2 - 1 What is the role of cyclic compared to noncyclic A To fix carbon dioxide B To avoid the effects of herbicides C To adapt to

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1) What is the role of cyclic photophosphorylation compared to noncyclic photophosphorylation? A. To fix carbon dioxide B. To avoid the effects of herbicides C. To adapt to cellular ATP needs D. To generate more reduced electron carriers E. To limit the oxygenation reaction of Rubisco 2) Which is an accurate statement regarding oxidative phosphorylation? A. Phosphorylation drives electron carriers to sequentially lower and lower energy levels. B. Oxygen is oxidized and ATP is produced by phosphorylation of ADP. C. None of the options are correct. D. Electron carriers are phosphorylated before being oxidized. E. The process of electron transfer creates an electrochemical gradient that drives phosphorylation of ATP from ADP. 3) Which is an accurate statement regarding the genetic code? A. The code varies between different species. B. AUG is a terminating codon. C. There can be more than one codon for a particular amino acid. D. The code is ambiguous in that the same codon can code for two or more amino acids. E. There are 44 stop codons because there are only 20 amino acids. 4) Which of the following is critical for transcription initiation? A. promoter B. 3’ UTR C. initiator tRNA D. origin of replication E. start codon
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5) In the energy-yielding phase of glycolysis, energy is extracted in the form of: A. phosphorylated intermediates B. NADH and ATP C. protons D. pyruvate E. carbon dioxide 6) A eukaryotic protein is 300 amino acids long. What is the minimum size of the coding sequences for the corresponding gene? (bp = basepair) A. 1800 bp B. 900 bp C. 600 bp D. 300 bp E. 100 bp 7) The proteins of the electron transport chain active in the light-dependent reactions:
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This note was uploaded on 12/06/2009 for the course BIO 172 taught by Professor Clark during the Winter '08 term at University of Michigan.

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Practice Exam 2 - 1 What is the role of cyclic compared to noncyclic A To fix carbon dioxide B To avoid the effects of herbicides C To adapt to

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