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TLS Online TPP Program

#Question id: 1099

How does the toxin of Vibrio cholerae cause profuse diarrhea?

#4. Cell Communication and Cell Signaling

  1. It modifies a G protein involved in regulating salt and water secretion.

  2. It modifies adenylyl cyclase and triggers excess formation of cAMP.

  3. It signals IP3 to act as a second messenger for the release of calcium.

  4. It modifies a ligand-gated ion channel.

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TLS Online TPP Program

#Question id: 11141

#7. System Physiology – Animal

The operation of the sodium-potassium pump moves ________.
TLS Online TPP Program

#Question id: 12106

#10. Ecological Principles

Which of the following best describes resource partitioning?
TLS Online TPP Program

#Question id: 938

#1. Molecules and their Interaction Relevant to Biology

Physiological roles for glutamate dehydrogenase include all of the following, except
TLS Online TPP Program

#Question id: 9216

#9. Diversity of Life Forms

Which of the following criteria have to be met for a species to qualify as invasive?
TLS Online TPP Program

#Question id: 10324

#9. Diversity of Life Forms

Which of the following is not true of all horizontally oriented phylogenetic trees, where time advances to the right?