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TLS Online TPP Program

#Question id: 1122

In endocrine signaling, the signaling molecule.

#XL - Q Biochemistry

  1. acts on target cells distant from the site of synthesis.

  2. acts on target cells that are in close proximity to the secreting cell.

  3. acts on the same cells that released the signaling molecule.

  4. acts on cells that are physically in contact with the secreting cell.

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TLS Online TPP Program

#Question id: 2197

#XL - Q Biochemistry

 If a freshwater plant were put in sea water, its cells would:
TLS Online TPP Program

#Question id: 2198

#XL - Q Biochemistry

The cell in number (15) above would be in an environment that was:
TLS Online TPP Program

#Question id: 2199

#XL - Q Biochemistry

Which of the following is not an example of an ion transporter?
TLS Online TPP Program

#Question id: 2200

#XL - Q Biochemistry

A neurotransmitter that binds to a postsynaptic cell and opens K+ channels:
TLS Online TPP Program

#Question id: 2201

#XL - Q Biochemistry

Much of what we know about the nicotinic acetylcholine receptor has come from studies of:
TLS Online TPP Program

#Question id: 2202

#XL - Q Biochemistry

The distribution of K+ across an artificial membrane was measured, and the concentrations were found to be equal on both sides. Which of the following statements is true about the distribution of K+?