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Questions and Answers
Which of the following biomolecules accounts for more than 50% of the dry mass of most cells?
Which of the following biomolecules accounts for more than 50% of the dry mass of most cells?
- Proteins (correct)
- Carbohydrates
- Nucleic acids
- Lipids
What are the functions of proteins in cells?
What are the functions of proteins in cells?
- Structural support and defense against foreign substances (correct)
- Energy storage and transfer
- Cellular respiration
- DNA replication and transcription
What are the four different groups attached to the α-carbon in an amino acid?
What are the four different groups attached to the α-carbon in an amino acid?
- Carboxyl group, Hydroxyl group, Amino group, and R group
- Amino group, COOH group, Hydrogen atom, and R group (correct)
- Amino group, COOH group, Hydroxyl group, and R group
- Carboxyl group, Hydrogen atom, Hydroxyl group, and R group
What determines the unique characteristics of a particular amino acid?
What determines the unique characteristics of a particular amino acid?
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What is the charge of acidic amino acids?
What is the charge of acidic amino acids?
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