The movement of excess H+ and K+ ions from
peritubular capillaries to the nephron tubules is
a. reabsorption.
b. secretion.
c. excretion.
d. filtration.
e. osmosis.
Answer: b
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A new antibiotic has been developed that inhibits the activity of an enzyme by competitive inhibition. What effect will this have on the activation energy of the enzyme-catalyzed reaction?
A. The activation energy required for the reaction in the presence of the antibiotic would be greater than the activation energy required in the absence of the antibiotic B. The activation energy required for the reaction in the presence of the antibiotic would be less than the activation energy required in the absence of the antibiotic C. The activation energy required for the reaction in the presence of the antibiotic will be the same as the activation energy required in the absence of the antibiotic
Using the product rule, the probability that parents heterozygous for two traits (AaBb) produce an offspring homozygous recessive for the same two traits (aabb) is
A) 1/4. B) 1/8. C) 1/16. D) 1/24.
Cord blood can be harvested from the umbilical cord of a newborn but can only provide red blood cell replacement in case of needed therapy or damage.
a. true b. false
Mothers with small children often do not seem to hear their noisy children. This is an example of:
a. imprinting. b. habituation. c. classical conditioning. d. operant conditioning. e. insight learning.