DN: 5/12/25 Exploring Macromolecules: A Quiz

Which of the following is NOT a type of macromolecule found in living organisms?

• Carbohydrates

• Plastics

• Proteins

• Nucleic acids

Lipids are important in the body because they:

• Make up cell membranes

• Store genetic information

• Help with muscle contraction

• Carry oxygen in the blood

If a food contains a lot of starch, which macromolecule is it rich in?

• Protein

• Lipid

• Carbohydrate

• Nucleic acid

Tags

NGSS.MS-LS1-7

A scientist wants to test for the presence of proteins in a food sample. Which test should they use?

• Benedict’s test

• Biuret test

• Iodine test

• Sudan III test

A student is given a diagram showing a long chain of repeating glucose molecules. Which macromolecule are they most likely looking at, and what is its main function?

• Protein; builds muscle

• Carbohydrate; stores energy

• Lipid; forms cell membranes

• Nucleic acid; stores genetic information

Imagine you are planning a meal for an athlete who needs quick energy and muscle repair. Which combination of macromolecules should be included in the meal, and why?

• Carbohydrates and proteins, because carbohydrates provide quick energy and proteins help repair muscles.

• Lipids and nucleic acids, because lipids provide quick energy and nucleic acids help repair muscles.

• Proteins and nucleic acids, because proteins provide energy and nucleic acids help build muscles.

• Carbohydrates and lipids, because both provide quick energy and help repair muscles.