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TLS Online TPP Program

#Question id: 2063

In what way do the membranes of a eukaryotic cell vary?

#XL - S Microbiology

  1. Phospholipids are found only in certain membranes.

  2. Certain proteins are unique to each membrane.

  3. Only certain membranes of the cell are selectively permeable.

  4. Some membranes have hydrophobic surfaces exposed to the cytoplasm while others have hydrophilic surfaces facing the cytoplasm.
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TLS Online TPP Program

#Question id: 2196

#XL - Q Biochemistry

Substance X is a charged molecule of small molecular weight. It is found at higher concentrations outside of cells than inside. How might substance X enter cells?
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: