10 Questions
Which enzyme catalyzes the first step in glycolysis?
Hexokinase
What is the major form of hexokinase present in all cells?
Hexokinase
What is the Km value for hexokinase?
100 µM
Under what condition does glucokinase function in the liver?
High glucose levels
How is hexokinase regulated?
Directly inhibited by glucose-6-P
Which molecule allosterically inhibits Phosphofructokinase (PFK)?
ATP
What is the major activator of Phosphofructokinase (PFK)?
Fructose-1,6-bisphosphate
Which molecule allosterically activates Pyruvate Kinase?
AMP
What does 2,3-BPG (for hemoglobin) do?
Acts to maintain hemoglobin in low oxygen affinity form
How is Hexokinase inhibited in glycolysis?
By ATP
Test your knowledge about glycolysis, an essential anaerobic process in carbohydrate metabolism. Learn about the ten reactions involved, the energy investment and energy generation phases, and the conversion of glucose to pyruvate.
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