please answer 1-9 Version A 1. Which of the following can be found on cell membr
ID: 280474 • Letter: P
Question
please answer 1-9
Version A 1. Which of the following can be found on cell membrane? (a) phospholipids () proteins (C) glycolipids d) all of the above 2. The presence of phospholipids with increased number of double bonds will membrane luidity? (b) decrease (a) increase (c) have no effect on 3. Decreased cholesterol in the phospholipid bilayer VI membrane fluidity? (b) decrease (a) increase (c) have no effect orn 4. Which of the following is NOT required for protein transport into the nucleus? (a) Ran GTPase (c) nuclear pore complex (d) nuclear localization signal (b) SRP receptor 5. Which of the following is required for protein transport into the ER? (a) SRP (b) SRP receptor (c) protein translocator (d) all of the above 6. Which of the following is not required for protein transport into the mitochondria? (c) import receptor (a) signal sequence (b) Ran GTPase (d) protein translocator 7. Transport of a soluble protein into the lumen of the ER does not require which of the following? (a) protein translocator (b) start transfer sequence (c) stop transfer sequence (d) signal peptidase 8. Transport of a multi-pass transmembrane protein into the ER differs from the transport of a single pass transmembrane protein in which of the llowing criteria? (a) protein translocator (b) start transfer sequence (c) the location of the start transfer sequence (d) the location of the stop transfer sequence 9. Selection of cargo into transport vesicles requires which of the following proteins or structures? (a) dynamin (b) clathrin coat d) cargo receptor (c) adaptin Continued on the reverse sideExplanation / Answer
Question 1. d) all of the above can be found on cell membrane.
The basic structure of a plasma membrane is the lipid bilayer, which is composed of two leaflets of amphipathic lipid molecules, hydrophobic portions remain embedded in the membrane interior. Phospholipids and glycolipids are two classes of such lipid molecules, embedded in the membrane. Different proteins are also present in the membrane (e.g-peripheral protein,integral protein), which are responsible for most of the dynamic processes carried out by membranes.
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