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TLS Online TPP Program

#Question id: 2130

Peripheral membrane proteins:

#XL - T Zoology

  1. are generally noncovalently bound to membrane lipids.

  2. are usually denatured when released from membranes.

  3. can be released from membranes only by treatment with detergent(s).

  4. may have functional units on both sides of the membrane.

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TLS Online TPP Program

#Question id: 2119

#XL - T Zoology

A sodium-potassium pump:
TLS Online TPP Program

#Question id: 2120

#XL - S Microbiology

Which one of the following statements about membranes is true?
TLS Online TPP Program

#Question id: 2120

#XL - T Zoology

Which one of the following statements about membranes is true?
TLS Online TPP Program

#Question id: 2121

#XL - S Microbiology

Which of the following membrane activities requires energy from ATP hydrolysis?
TLS Online TPP Program

#Question id: 2121

#XL - T Zoology

Which of the following membrane activities requires energy from ATP hydrolysis?
TLS Online TPP Program

#Question id: 2122

#XL - S Microbiology

The inner (plasma) membrane of E. coli is about 75% lipid and 25% protein by weight.  How many molecules of membrane lipid are there for each molecule of protein?  (Assume that the average protein is Mr 50,000 and the average lipid is 750.)