Biology- Chapter 5 Multiple Choice

The enzyme amylase can break glycosidic linkages between glucose monomers only if the monomers are in in the "a" form. Which of the following could amylase break down? a. glycogen, starch, and amylopectin b. glycogen and cellulose c. cellulose and chitin d. starch, chitin, and cellulose

A

The structural level of a protein least affected by a disruption in hydrogen bonding is the: a. Primary level b. Secondary level c. Tertiary level d. Quaternary level

A

Enzymes that break down DNA catalyze the hydrolysis of the covalent bonds that join nucleotides together. What would happen to DNA molecules treated with these enzymes? a. The two strand of the double helix would separate b. The phosphodiester linkages of the polynucleotide backbone would be broken c. The pyrimides would be separated from the DNA sugars d. All bases would be separated from the DNA sugars

B

Which of the following statements concerning unsaturated fats is true? a. They are more common in animals than in plants b. They have double bonds in the carbon chains of their fatty acids c. They generally solidify at room temperature d. They contain more hydrogen than do saturated fats having the same number of carbon atoms

B

Which of the following categories includes all others in the list? a. monosaccharide b. polysaccharide c. starch d. carbohydrate

D