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Questions in Lipids and Biomembranes
Page 5 out of 6 Pages
- What is membrane fluidity and what are the three different possible movements for a phospholipid in a biological membrane?(5406 views)
- How do cholesterol molecules affect fluidity? (6133 views)
- Will we only be able to recognize if cholesterol is present if you tell us that it is an animal cell? (3137 views)
- In a phospholipid the third hydroxyl group is linked to a phosphate group instead of a fatty acid. Is this
link an ester bond?(5999 views)
- Do steroids contain ester bonds?(8054 views)
- Why is the bond between a peripheral protein and integral membrane protein non-covalent? I understand that the bonding between the R Groups have the ability to be ionic, but wouldn't hydrogen bonding and Van der walls forces be considered covalent?
Another question is, do transmembrane proteins just classify peripheral and integral membrane proteins or are they a specific type of protein that lies in the membrane?(11892 views)
- Does a polypeptide chain require hydrogen bonding in its final conformation?
Is a subunit interaction in a multi-subunit protein likely to use hydrogen bonding?
Why do hydrocarbons on adjacent fatty acid tails NOT use hydrogen bonding? Is it because they are nonpolar?(10699 views)
- I was re-listening to the lecture and heard Prof. Mehrtens mention mono-unsaturated fatty acids. What is the difference between that and just a regular unsaturated fatty acid? (5359 views)
- Regarding the lecture on phospholipids and biomembranes, Prof. Mehrtens mentioned that when looking at the 3-carbon backbone of a phospholipid you should look for a nitrogen atom to determine if the backbone is serine vs. glycerol or something else. In general, if there is no nitrogen atom present in the 3-carbon backbone of a phospholipid, can we assume for the purposes of this class right now that this backbone is glycerol?(5346 views)
- Do all lipids (phospholipids, steroids and glycolipids) have a 3-carbon backbone, regardless as to whether it is Serine or Glycerol?(5383 views)