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Questions and Answers
What is the percentage of chemical energy used by a cell for all biosynthetic reactions that can be accounted for by protein synthesis?
What is the percentage of chemical energy used by a cell for all biosynthetic reactions that can be accounted for by protein synthesis?
- 80%
- 70%
- 50%
- 90% (correct)
How many different ribosomal proteins are required for eukaryotic protein synthesis?
How many different ribosomal proteins are required for eukaryotic protein synthesis?
- 50
- 30
- 90
- 70 (correct)
How long does it take to synthesize a polypeptide of 100 residues in an Escherichia coli cell at 37°C?
How long does it take to synthesize a polypeptide of 100 residues in an Escherichia coli cell at 37°C?
- 5 seconds (correct)
- 10 seconds
- 2 seconds
- 15 seconds
How many molecules of tRNA are there in a typical bacterial cell?
How many molecules of tRNA are there in a typical bacterial cell?
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What is the percentage of the cell's dry weight that can be accounted for by ribosomes, protein synthesis-related protein factors and enzymes, and tRNA molecules in a typical bacterial cell?
What is the percentage of the cell's dry weight that can be accounted for by ribosomes, protein synthesis-related protein factors and enzymes, and tRNA molecules in a typical bacterial cell?
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How many different macromolecules cooperate to synthesize polypeptides?
How many different macromolecules cooperate to synthesize polypeptides?
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