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TLS Online TPP Program

#Question id: 34340

Which of the following statements about filtration sterilization are correct?

#XL - S Microbiology
  1. It removes microorganisms based on size exclusion.
  2. It can sterilize both liquids and air.
  3. It disrupts microbial membranes using mechanical force.
  4. It retains viruses larger than 0.45 µm.
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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+?
TLS Online TPP Program

#Question id: 2204

#XL - Q Biochemistry

A mutant channel protein is expressed in an oocyte. Compared to patch clamping experiments in oocytes expressing the normal channel, the length of downward deviations is diminished by half. This indicates: