Macromolecules Notes

Multiple Choice

Why are macromolecules considered essential for life?

• Because they provide structure and energy to living things

• Because they are only found in plants

• Because they are inorganic molecules

• Because they are only used for storage

Multiple Choice

Which of the following best describes the relationship between monomers and polymers?

• Monomers are small units that combine to form polymers.

• Polymers are small units that combine to form monomers.

• Monomers and polymers are unrelated.

• Polymers are single molecules.

Multiple Select

Which of the following statements about dehydration reactions and hydrolysis are correct?

• Dehydration reactions build polymers by removing water.

• Hydrolysis breaks polymers by adding water.

• Dehydration reactions break polymers into monomers.

• Hydrolysis builds polymers by removing water.

Multiple Choice

Which of the following foods is NOT a good source of carbohydrates?

• Bananas

• Bread

• Olive oil

• Potatoes

Multiple Choice

What is the main function of lipids in the body?

• Short-term energy storage

• Long-term energy storage

• Building muscle

• Providing vitamins

Multiple Choice

Which of the following is the monomer of lipids?

• Fatty acids

• Amino acids

• Monosaccharides

• Nucleotides

Multiple Select

Which of the following statements about phospholipids are correct?

• They have a hydrophilic head and hydrophobic tails.

• They contain two fatty acids and one phosphate group.

• They are a type of protein.

• Their tails are water loving.

Multiple Choice

What is the main function of the phospholipid bilayer in cells?

• It makes the membrane selectively permeable.

• It stores genetic information.

• It provides energy for the cell.

• It transports oxygen.

Multiple Choice

Which of the following elements are nucleic acids composed of?

• C, H, O, N, P

• C, H, O, S

• C, H, O, N, S

• C, H, O, P, S

Multiple Choice

Which of the following are examples of macromolecules found in living things?

• Carbohydrates, lipids, proteins, and nucleic acids

• Water, oxygen, carbon dioxide, and nitrogen

• Vitamins, minerals, salts, and sugars

• Starch, glucose, cellulose, and hemoglobin