Based on what you know about the characteristics of membrane transport, explain the results shown on the graph. Each mixture consists of equal parts of glucose and fructose at the indicated concentration.

What will be an ideal response?


The cell has two separate membrane transport molecules, one specific for glucose and the other for fructose. The transporters become saturated somewhere between the concentrations of 0.5 mM and 1.0 mM, thus any higher concentration of these sugars produces no further increase in transport.

Anatomy & Physiology

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Hannah eats tremendous amounts of food, but then takes laxatives, vomits, and exercises to keep from gaining weight. She has an eating disorder called ________.

Fill in the blank(s) with the appropriate word(s).

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The origins of the extrinsic muscles of the hand are the

A) scapula and humerus. B) flexor retinaculum. C) humerus, radius, and ulna. D) carpals and metacarpals. E) ulna and radius.

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Which disorder of the oral cavity commonly seen in patients with HIV or compromised immune systems?

A. Hairy leukoplakia B. Gingivitis C. Dental caries D. Peridontitis

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The analysis of the smallest units of life is called ________.

A) embryology B) cytology C) physiology D) histology E) morphology

Anatomy & Physiology