Compounds of Life Topic Quiz

DNA is a polymer made up of a long chain of monomers called ____________.

• nucleotides

• amino acids

• fatty acids

• carbohydrates

The main function of nucleic acids is related to _____________.

• Energy release

• Enzyme formation

• The storage and transmission of genetic information

• Catalyzing chemical reactions

What are the four main types of biological molecules found in the cells of living things?

• carbohydrates, lipids, nucleic acids, and proteins

• lipids, nutrients, nucleic acids, and carbon dioxide

• carbon dioxide, hydrogen, oxygen, and various salts

• none of the above

This image shows the basic structure of what?

• lipid

• carbohydrate

• nucleic acid

• amino acid

This image shows the basic structure of a ______________.

• protein

• carbohydrate

• nucleic acid

• lipid

There are _____ "essential amino acids" that our bodies cannot make and we need to get them from the food we eat.

• 5

• 9

• 11

• 20

The main source of energy for our cells comes from _______________.

• proteins

• carbohydrates

• lipids

• DNA

The following would be an example of a complex carbohydrate _______________.

• starch found in bread

• glucose found in fruit

• protein found in fish

• butter

The symbiotic bacteria found in some animals digestive system (like elephants, cows, rabbits) allows them to digest _______________ from plants, while humans cannot digest it.

• protein

• lipids

• sugar

• cellulose

If we eat more food than we need to live, our bodies turn the extra food into ______________ to store the energy.

• proteins

• carbohydrates

• lipids

• RNA