Which of the following is produced during alcoholic fermentation?
a. CO 2
b. water
c. lactate
d. FADH
a. CO 2
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Which component of a nerve cell provides electrical insulation for signals that are travelling along the axon?
a. astrocytes b. dendrites c. oligodendrocyte d. soma
Lipids are the only class of macromolecules that contain:
A. monosaccharides. B. phosphate groups. C. fatty acids. D. amino acids. E. nucleotides.
High levels of citric acid inhibit the enzyme phosphofructokinase, a key enzyme in glycolysis. Citric acid binds to the enzyme at a different location from the active site. This is an example of _____
A) competitive inhibition B) allosteric regulation C) the specificity of enzymes for their substrates D) positive feedback regulation
When heart muscles cells are deprived of oxygen, the heart still pumps for some time. What must the heart cells be able to do?
A. derive sufficient energy from fermentation B. remove oxygen from lactate C. transform lactate back to pyruvate D. remove lactate from the blood E. continue aerobic metabolism when skeletal muscle cannot