Macromolecules Quiz

What are the large molecules that make up living things?

• Macromolecules
• Monomers
• Nucleotide
• Polysaccharide

The diagram below represents a fat molecule. A fat molecule belongs to which category of macromolecules?

• proteins
• nucleic acids
• lipids
• carbohydrates

Some bacteria contain a substance called nitrogenase. Nitrogenase starts the chemical reaction that converts nitrogen into the atmosphere (N2) into ammonia (NH3). Nitrogenase is an example of which of the following?

• a sugar
• a nucleotide
• an enzyme
• an amino acid

Which of the following is the main reason that humans need to include carbohydrates in their diet?

• Carbohydrates are broken down in cells for energy
• Carbohydrates combine to form many different proteins
• Carbohydrates speed up chemical reactions.
• Carbohydrates are the building blocks for cell growth and repair.

In the human body, fibrinogen is necessary for sealing cuts and stopping the loss of blood. Since fibrinogen is made of chains of amino acids, it is an example of which type of macromolecule?

• carbohydrate
• fatty acid
• protein
• nucleic acid

A single nucleotide of DNA is composed of which of the following substances? Hint: You might need a HAND!

• 1 adenine, 1 guanine, and 2 cytosine
• a hydrogen, a phosphate, and adenine
• a ribose sugar, a deoxyribose sugar, and a thymine
• a sugar, a phosphate, and a base

In the diagram, the substance labeled X is an ____

• an enzyme
• ATP
• water
• oxygen

Which of the following categories of macromolecules is correctly paired with a correct function (job)?

• nucleic acids - digest dead cells
• lipids - give quick energy to cells
• carbohydrates - store genetic information
• proteins - provide structure in skin, hair, muscles, and nails

Which of the following is a monomer of a carbohydrate?

• Monosaccharide
• Amino Acid
• Glycogen
• Glycerol

Which makes up plant cell walls?

• cellulose
• chitin
• starch
• glycogen