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
B
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Why is it possible for multicellular green and red algae to reproduce asexually by fragmentation but not the brown algae?
What will be an ideal response?
If the vas deferens tubes are cut and tied (vasectomy), the semen will not contain:
a. fructose b. buffers c. mucus d. sperm e. any secretions
Describe how amniocentesis is used in the prenatal diagnosis of human genetic abnormalities. Then compare and
contrast the benefits and risks associated with amniocentesis and chorionic villus sampling. What will be an ideal response?
One strategy for reducing the need for application of fertilizer is to plant legumes such as alfalfa and non-legume plants such as corn in alternating years. This allows:
What will be an ideal response?