TLS Online TPP Program

#Question id: 2130


Peripheral membrane proteins:

#Unit 2. Cellular Organization
  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: 73

#Unit 1. Molecules and their Interaction Relevant to Biology

Match the Variation of Reaction Spontaneity (Sign of ΔG) given in Column I with the Signs of ΔH and ΔS given in column II.

COLUMN I

COLUMN II

 

 

 

  ΔH

ΔS

ΔG = ΔH – TΔS

1.

+

a. The reaction is both enthalpically and entropically opposed. It is nonspontaneous (endergonic) at all temperatures.

2.

 −

− 

b. The reaction is enthalpically opposed (endothermic) but entropically favored. It is spontaneous only at temperatures above T = ΔH/ΔS.

3.

+

+

c. The reaction is enthalpically favored but entropically opposed. It is spontaneous only at temperatures below T = ΔH/ΔS.

4.

+

d. The reaction is both enthalpically favored (exothermic) and entropically favored. It is spontaneous (exergonic) at all temperatures.

TLS Online TPP Program

#Question id: 32292

#Unit 1. Molecules and their Interaction Relevant to Biology

Identify the structure shown

 

TLS Online TPP Program

#Question id: 19899

#Unit 12. Applied Biology

Which one of the following is a disadvantage of a Calorimetric transducer?

TLS Online TPP Program

#Question id: 137

#Unit 1. Molecules and their Interaction Relevant to Biology

Disulfide bridges can form in proteins ________.

TLS Online TPP Program

#Question id: 1510

#Unit 4. Cell Communication and Cell Signaling

Match the correct protein (Column I) with their function (Column II) during apoptosis.

Column I

Column II

A. Puma

I. Pro-survival protein

B. Bak

II. Zymogen

C. Mcl-1

III. Pro-apoptotic protein

D. CED-3

IV. BH3-only protein