Hexokinase Has a Km of 0

question 75

Multiple Choice

Hexokinase has a Km of 0.1 mM for glucose,whereas glucokinase has a Km of 10 mM for glucose.What does that mean for their relative affinities for glucose?

• A) Glucokinase has a higher affinity.
• B) Hexokinase has a higher affinity.
• C) Km does not measure affinity.
• D) They are different enzymes and affinity cannot be compared between enzymes.

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Definitions:

Accumulated Value

In computing and data processing, this term refers to a total that increases over time as more data or units are added.

Preset Value

A predefined or user-set value that determines when a certain action should be taken or when a specific condition is met within a system.

Timed Contact

"A normally open and/or normally closed contact that is actuated at the end of a timer’s time-delay period."