Biochemistry Test Review Quiz

Which of these substances stores the most energy?

• one gram of alcohol

• one gram of carbohydrates

• one gram of fat

• one gram of protein

A biomolecule that is a large, complex set of chains composed of alternating subunits called nucleotides has which of these functions in the cell?

• storing energy

• catalyzing cellular reactions

• building tissue

• storing genetic information

The enzymes that catalyze cellular reactions are macromolecules made of organic compounds composed of carbon, hydrogen, oxygen, and nitrogen. These types of macromolecules are known

• Carbohydrates

• Lipids

• Proteins

• Nucleic acids

The enzymes that catalyze cellular reactions are macromolecules called proteins. Which of the following elements most often compose proteins?

• carbon and hydrogen

• carbon, hydrogen, oxygen, and nitrogen

• carbon, hydrogen, and oxygen

• carbon, hydrogen, oxygen, nitrogen, and phosphorus

Many land plants store energy in starch. When energy is needed, the starch molecules can be broken down quickly. This chemical reaction produces which of the following?

• Amino acids

• Lipids

• Monosaccharides

• RNA chains

Beeswax is a waxy substance that is produced by bees and then harvested by humans for a variety of uses. Ancient Romans used beeswax as a waterproofing agent because it is not water-permeable. Beeswax is which of the following types of organic molecule?

• Carbohydrate

• Lipids

• Nucleic acid

• Protein

Which of the following macromolecules are a prominent part of animal connective tissue such as cartilage and keratin?

• Carbohydrates

• Lipids

• Protein

• Nucleic acids

Which biomolecule do living organisms use as energy storage?

• Carbohydrates

• Lipids

• Proteins

• Nucleic acid

What monomer is represented by this diagram?

• Monosaccaride

• Nucleotide

• Glycerol

• Amino acid

One function of the carbohydrate macromolecule is to store energy. Which other macromolecule also functions in storing energy?

• DNA

• Protein

• RNA

• Lipid