Proteins Quiz

What is the main source of protein in food?

• meat, poultry, fish, eggs, dairy products, legumes, nuts, and seeds

• sugar and sweets

• grains and cereals

• fruits and vegetables

What are dipeptides and polypeptides?

• Dipeptides are molecules composed of three amino acids joined together by a peptide bond. Polypeptides are longer chains of amino acids joined together by peptide bonds.

• Dipeptides are molecules composed of one amino acid joined together by a peptide bond. Polypeptides are shorter chains of amino acids joined together by peptide bonds.

• Dipeptides are molecules composed of four amino acids joined together by a peptide bond. Polypeptides are shorter chains of amino acids joined together by peptide bonds.

• Dipeptides are molecules composed of two amino acids joined together by a peptide bond. Polypeptides are longer chains of amino acids joined together by peptide bonds.

Why is protein shape important for proteins?

• Protein shape determines its function and how it interacts with other molecules and performs its biological tasks.

• Protein shape is irrelevant to its biological tasks.

• Protein shape only affects its physical appearance.

• Protein shape has no impact on its function.

Can you provide examples of proteins?

• Lipids, carbohydrates, nucleic acids, vitamins

• Enzymes, antibodies, hemoglobin, collagen, insulin

• Fats, sugars, starches, minerals

• Water, oxygen, carbon dioxide, nitrogen

What is the building block of proteins?

• amino acids

• carbohydrates

• lipids

• nucleotides

Which food group is the richest source of protein?

• fruits and vegetables

• dairy products

• meat and poultry

• grains

What is the difference between dipeptides and polypeptides?

• Dipeptides are found in plants, while polypeptides are found in animals.

• Dipeptides are composed of three amino acids, while polypeptides are composed of four or more amino acids.

• Dipeptides are composed of two amino acids, while polypeptides are long chains of amino acids.

• Dipeptides are longer than polypeptides.

What are the monomers that make up proteins?

• amino acids

• lipids

• carbohydrates

• nucleotides

All of the following are functions of proteins except....

• Transportation of material across a membrane

• Carrying messages between cells

• Storage of genetic information

• The ability to act as a catalyst