Which of the following is a biological advantage of storing glucose molecules in branched polymers?
A) They can be stacked together to save space. B) They are insoluble and so provide strength to the molecule. C) They have more sites for enzymatic attack than do unbranched polymers. D) They are resistant to enzymes.
People who are lactose intolerant cannot extract energy from milk because ________.
A) an enzyme is not functioning correctly B) lactose is too big to be digested by the enzymes C) milk is fermented to a by-product, which cannot be digested D) they are missing the bacteria that can digest lactose
Which of the following statements is correct regarding starch and cellulose?
A) They are polymers of glucose. B) They are cis and trans isomers of each other. C) They are used for energy storage in plants and animals. D) They are structural components of the plant cell wall.