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Protein Composition and Functions

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Questions and Answers

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?

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?

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?

<p>Physical and chemical properties of the side chain (R group)</p> Signup and view all the answers

What is the charge of acidic amino acids?

<p>Negative</p> Signup and view all the answers

Protein Composition and Functions

Choose a study mode

Podcast

Questions and Answers

Which of the following biomolecules accounts for more than 50% of the dry mass of most cells?

What are the functions of proteins in cells?

What are the four different groups attached to the α-carbon in an amino acid?

What determines the unique characteristics of a particular amino acid?

What is the charge of acidic amino acids?

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