Question

1. which statement best describes enzymes? a) they speed up reactions by being used up in the reaction. b) they slow down reactions so cells can keep up. c) they are proteins that speed up chemical reactions without being consumed. d) they are lipids used for storage. 20. which biomolecule is classified as a polymer made of sugars? a) protein b) carbohydrate c) lipid d) nucleic acid part 4: open - ended questions: choose two questions to answer. use 3 - 5 complete sentences. 21. explain how monomers and polymers are related. 22. compare the functions of carbohydrates and lipids in terms of energy use and storage.

Explanation:

1. Enzymes are proteins that catalyze reactions without being consumed.
2. Carbohydrates are polymers of sugars.
3. Polymers are made of monomers through bonding.
4. Carbohydrates are quick - energy sources, lipids store long - term energy.

Answer:

1. d) They are proteins that speed up chemical reactions without being consumed.
2. b) Carbohydrate
3. Monomers bond together to form polymers.
4. Carbohydrates provide quick energy, lipids store energy long - term.