#Question id: 2191
#Unit 2. Cellular Organization
A membrane-affiliated protein is isolated by detergent extraction, and found to be amphipathic and lacking any nonprotein components. To which class of membrane proteins does it belong?
#Question id: 2192
#Unit 2. Cellular Organization
Site-directed cross-linking is a technique that gives insight into what property of integral membrane proteins?
#Question id: 2193
#Unit 2. Cellular Organization
A membrane is examined using freeze-fracture and freeze-etch analysis. The surfaces are shown to have almost no pits or bumps. Which of the following is the most likely source of the membrane?
#Question id: 2194
#Unit 2. Cellular Organization
Which one of the following organisms would you predict has the highest proportion of unsaturated fatty acids in their membranes?
#Question id: 2195
#Unit 2. Cellular Organization
Which of the following statements about the mobility of membrane components is true?
#Question id: 2196
#Unit 2. Cellular Organization
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?