INTRODUCTION TO MICROSCOPY CELL BIOLOGY
MITOCHONDRIA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The difference in pH between the mitochondrial matrix and the intermembrane space is maintained by ____
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Glycolysis
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Link Reaction
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Krebs Cycle
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ETC
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Explanation:
Detailed explanation-1: -In intact mitochondria, pH remains alkaline through the activity of the electron transport chain (ETC), with resting mitochondrial pH values ranging from 7.2 to 8.2 in different cell types [12].
Detailed explanation-2: -What effect would cyanide have on ATP synthesis? After cyanide poisoning, the electron transport chain can no longer pump electrons into the intermembrane space. The pH of the intermembrane space would increase, the pH gradient would decrease, and ATP synthesis would stop.
Detailed explanation-3: -The pH of the mitochondrial matrix is therefore about 8, compared to the neutral pH (approximately 7) of the cytosol and intermembrane space.
There is 1 question to complete.