1. As a result of the ETC, an osmotic difference is created between the matrix a
ID: 88036 • Letter: 1
Question
1. As a result of the ETC, an osmotic difference is created between the matrix and the _______.
A. cytoplasm B. matrix C. nucleus D. innermembrane space E. outermembrane
2. During heavy exercise, pyruvate is metabolized by which pathway in an effort to regenerate NAD+ ?
A. lactic acid fermentation B. alcoholic fermentation C. TCA cycle D. oxidative phosphorylation E. pyruvate dehydrogenase complex
3. During oxidative phosphorylation, where is the energy for synthesizing ATP gained?
A. through exergonic reactions B. oxidation of Cyt C C. oxidation of ethanol D. electronmotive force E. protonmotive force
Explanation / Answer
As a result of the ETC, an osmotic difference is created between the matrix and the _______.
D. innermembrane space
this osmotic difference of protons between matrix and space between two membranes of mitochondria. This leads to moving of protons through complex V generating ATP molecules.
2. During heavy exercise, pyruvate is metabolized by which pathway in an effort to regenerate NAD+ ?
A. lactic acid fermentation
Lactic acid fermentation is carried during heavy exercise that generates NADH and lactic acid. It occurs in lack of oxygen.
3. During oxidative phosphorylation, where is the energy for synthesizing ATP gained?
E. protonmotive force
The electron transport chain leads to generation of protons motive force. This proton motive force leads to movement of protons across oxysome particles that causes production of ATP through enzyme ATP synthase.
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