The Glucose Uniporter GLUT1 Has a Km of 1

question 17

Multiple Choice

The glucose uniporter GLUT1 has a Km of 1.5 mM for d-glucose and 30 mM for d-galactose.At a concentration of 5 mM for each,what is the rate of glucose transport relative to galactose transport? The Vmₐₓ may be assumed to be the same for both.

• A)3.7-fold slower
• B)equal
• C)5.5-fold faster
• D)20-fold faster

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