TLS Online TPP Program
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TLS Online TPP Program
#Question id: 24671
#Unit 2. Cellular Organization
Cholesterol and phospholipids are transported between organelles by
i. Golgi-dependent mechanisms.
ii. incompletely characterized vesicle populations.
iii. direct contact between membranes and, to some extent, small, soluble lipid-transfer proteins.
Which of the following statements are correct?
TLS Online TPP Program
#Question id: 24672
#Unit 2. Cellular Organization
Which statement describes the mode of action of the ABCB1 transporter (the first eukaryotic ABC transporter to be recognized)?
TLS Online TPP Program
#Question id: 24673
#Unit 2. Cellular Organization
Which of the following properties is (are) typical of uniport proteins?
TLS Online TPP Program
#Question id: 24674
#Unit 2. Cellular Organization
Membrane lipids may
a. spontaneously flip-flop from one membrane leaflet to the other.
b. move laterally within one membrane leaflet.
c. aggregate with membrane proteins to form lipid rafts.
d. be unequally distributed in the two membrane leaflets.
e. be present in varying amounts in different cellular membranes
TLS Online TPP Program
#Question id: 31116
#Unit 2. Cellular Organization
Lipid transverse asymmetry can be seen in the typical animal cell, where the acidic and amine containing phospholipids are enriched in the:
TLS Online TPP Program
#Question id: 31117
#Unit 2. Cellular Organization
The lateral movements of specific plasma-membrane proteins and lipids can be quantified by a technique called: