Biomolecules and the Chemistry of Life True or False

1.	An atom is the smallest unit of a(n) ___________ and a molecule is the smallest unit of a(n) _____________. -> element; compound True False
2.	Ions form when -> electrons are gained or lost from an atom. True False
3.	Hydrogen bonds differ from ionic bonds in that -> ionic bonds lead to polar molecules, and hydrogen bonds do not. True False
4.	A food with a pH of 3 is ________ times more __________ than a food with a pH of 8. -> 50; acidic True False
5.	Hydrophobic substances do not dissolve in water because -> they are nonpolar so water isn’t attracted to them and, therefore, doesn’t pull them apart. True False
6.	Dehydration synthesis joins monomers into polymers for -> carbohydrates. True False
7.	Which of the following are sources of diversity in carbohydrates? -> Options 1, 2, and 3 True False
8.	The difference between saturated fatty acids and unsaturated fatty acids is that -> saturated fatty acids are used for energy storage, and unsaturated fatty acids are hormones. True False
9.	Which of the following statements about amino acids is NOT true? -> The properties of amino acids affect the structure and function of proteins. True False
10.	DNA is called a double helix because -> all the bonds between nucleotides are double bonds. True False

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