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TLS Online TPP Program

#Question id: 11670

A primary reason that the kidneys have one of the highest metabolic rates of all body organs is that ________.

#Unit 7. System Physiology – Animal
  1. they have membranes of varying permeability to water
  2. they operate an extensive set of active-transport ion pumps
  3. they are the body's only means of shedding excess nutrients
  4. they have an abundance of myogenic smooth muscle
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TLS Online TPP Program

#Question id: 562

#Unit 1. Molecules and their Interaction Relevant to Biology

Phenyl-methane-sulfonyl-fluoride (PMSF) inactivates serine proteases by binding covalently to the catalytic serine residue at the active site; this enzyme-inhibitor bond is not cleaved by the enzyme.  This is an example of what kind of inhibition?
TLS Online TPP Program

#Question id: 11007

#Unit 7. System Physiology – Animal

A 25-year-old, well-conditioned athlete weighs 80 kg (176 lb). During maximal sympathetic stimulation, what is the plateau level of his cardiac output function curve?
TLS Online TPP Program

#Question id: 14694

#Unit 13. Methods in Biology

Two balls are to be drawn from a bag containing 5 red and 7 white balls. Find the chance that they will both be white
TLS Online TPP Program

#Question id: 4971

#Unit 11. Evolution and Behavior

On the basis of their morphologies, how might Linnaeus have classified the Hawaiian silverswords?
TLS Online TPP Program

#Question id: 10268

#Unit 8. Inheritance Biology

In cats, black coat color is dominant over gray. A female black cat whose mother is gray mates with a gray male. If this female has a litter of six kittens, what is the probability that three will be black?