Biological Macromolecules and Water Properties Test Review 1C

Which elements are found in all carbohydrates?

• Carbon, Hydrogen, Oxygen

• Carbon, Nitrogen, Oxygen

• Hydrogen, Nitrogen, Sulfur

• Oxygen, Phosphorus, Nitrogen

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What is the monomer of proteins?

• Nucleotide

• Amino acid

• Monosaccharide

• Fatty acid

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Which macromolecule is primarily responsible for storing genetic information?

• Carbohydrates

• Nucleic acids

• Proteins

• Lipids

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Which property of water allows it to form hydrogen bonds with other water molecules?

• Nonpolarity

• Polarity

• High density

• Low surface tension

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What is the main function of enzymes in biological reactions?

• Store genetic information

• Speed up chemical reactions

• Provide structural support

• Store energy

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Which property of water is responsible for its high surface tension?

• Cohesion

• Expansion upon freezing

• Solubility

• High density

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Which of the following is an example of a lipid?

• Starch

• Cellulose

• Oils and fats

• Hemoglobin

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Why does ice float on liquid water?

• Ice is denser than water

• Ice is less dense than water

• Ice is nonpolar

• Ice has no hydrogen bonds

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Which macromolecule is made up of monosaccharide monomers and often forms ring-shaped structures?

• Protein

• Carbohydrate

• Lipid

• Nucleic acid

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Which property of water allows it to dissolve many substances, making it a versatile solvent?

• High heat capacity

• Polarity

• Expansion upon freezing

• Low surface tension

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