56. Sucralose is a non-caloric artificial sweetener. Its structure is similar to sucrose, but with three of sucrose's hydroxyl groups replaced by chloride. How do you predict sucralose behaves in the body? (A) Sucralose enters cells by diffusion. (B) Sucralose is unable to bind conventional sugar transport mediators and is excreted. (C) Sucralose binds to glucose transport mediators and is metabolized by normal metabolic pathways. (D) Sucralose does not enter the body.

59. Teeth aren't exactly bones, but they're made up of similar tissues and are subject to the same problems bones may have. In what way(s) do you predict the disease rickets might affect teeth? (A) Periodontal disease: Redness and swelling elicited by bacterial infection of the gums. (B) Delayed formation: The baby teeth may not erupt until after one year. When they erupt, they may be smaller than normal. (C) Increased likelihood of cavities: Low vitamin C status prevents sufficient mineralization, allowing infection to establish on the teeth. (D) Canker sores: Painful mouth sores associated with bacteria and/or viruses.

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