Welcome to the Quiz!

This quiz contains 12 questions from a mix of 1 subtopics.

Which monomers combine to form a polypeptide?

Nucleotides

Sugars

Dicarboxylic acids and diols

Amino acids

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Illustration showing the folded structure of a polypeptide.

What do polypeptides form once they fold up?

A fat molecule

A starch molecule

A protein

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Diagram of an amino acid showing the amino group, carboxyl group, hydrogen atom, and side chain.

The above molecule is an amino acid.


Which functional groups does an amino acid have?

(Select all that apply)

An 'R' group

An ester group

An amino group

A carboxylic acid group

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3

What type of reaction takes place when amino acids combine to form a polypeptide?

Addition reaction

Condensation reaction

Combustion reaction

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Which of the following names can be used to refer to the bond formed in a condensation reaction between amino acids?

(Select all that apply)

Amide link

Amide bond

Peptide bond

Amino bond

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3

Diagram showing the chemical structure of an amino acid involved in a condensation reaction.

Using pen and paper, complete the equation for the condensation reaction between amino acids.


(Click 'Continue' when you're ready to check your answer)

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4

Illustration showing the structure of DNA with its monomers.

Which monomers combine to form DNA?

Dicarboxylic acids and diols

Nucleotides

Amino acids

Sugars

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Which letters do we use to represent the four nucleotides that make up DNA?

(Select all that apply)

T

P

G

A

C

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one / two / three / helix / damage / pathogens


DNA molecules consist of polymer chains that coil around each other in a double . This helps to protect the DNA from

two
helix
damage

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3

What are the three elements that make up carbohydrates?

Carbon

Hydrogen

Nitrogen

Oxygen

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3

Which of the following are examples of carbohydrate polymers?

(Select all that apply)

Polypeptide

Glycogen

Starch

Cellulose

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Which of the following are examples of carbohydrate monomers?

(Select all that apply)

Fatty acids

Glucose

Fructose

Amino acids

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