Biomolecules & Enzymes Review

Front

The differences between two molecules include the type of sugar that forms a section of the molecules and the identity of one of the four nitrogenous bases that make up another section of the molecules. These two molecules are --

Back

nucleic acids

Front

Which molecule matches its function? Options: lipid - stores genetic information, enzyme - speeds up chemical reactions, vitamin - supplies energy to cells, carbohydrate - manufactures cell membranes

Back

enzyme - speeds up chemical reactions

Front

What are the repeating units that form a DNA molecule?

Back

nucleotides

Front

The human body uses carbohydrates as a --

Back

source of energy

Front

Which substance is not an organic molecule? Options: starch (carbohydrate), DNA (nucleic acid), water (H2O), fat (lipid)

Back

water (H2O)

Front

What are the building blocks that make up every protein?

Back

amino acids

Front

Both lipids and carbohydrates are important in animal cells because both —

Back

store energy

Front

What is the function of enzymes in biological systems?

Back

Enzymes act as catalysts to drive chemical reactions forward.

Front

Enzymes only work with specific substrates because each substrate —

Back

has a specific activation site for enzyme attachment

Front

Which macromolecules function in insulation, helping animals conserve heat?

Back

Lipids