Increasing the temperature increases the rate of an enzyme-catalyzed reaction. Once a critical temperature is reached, the reaction stops. Why does this happen?
A. The concentration of reactants drop
B. The enzymes have all been consumed in the reation
C. The increase in temperature alters the pH
D. The polypeptide chains in the enzyme denature
Select your answer:
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Med Term Musculoskeletal › Viewcrackling or grating sound
A. osteoclast
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Which one of the following is the correct sequence of events that follows a threshold potential:
1. the membrane becomes depolarized
2. sodium channels open and sodium ions diffuse inward
3. the membrane becomes repolarized
4. potassium channels open and potassium ions diffuse outward while sodium is actively transported out of the cell
.
A. 3,2,4,1
B. 2,1,4,3
C. 2,1,3,4
D. 1,2,4,3