During mitosis when does nuclear envelope breakdown occur?
prometaphase
2 of 11
DNA replication and centrosome duplication occur during:
interphase
3 of 11
The flexibility of a biological membrane is strongly influenced by;
Temperature
4 of 11
Based only on the nomenclature of a fatty acid, rank these fatty acids in order of likely melting temperature, from highest to lowest.
1) 12:0
2) 10:3∆4,6,8
3) 12:1∆5
4) 12:3∆5,7,9
5) 20:0
5,1,3,4,2
5 of 11
What is the typical thickness of a lipid bilayer such as the plasma membrane of our cells?
Select one:
5nm
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Why do liposomes not fuse with one another spontaneously when suspended in an aqueous environment?
Because the hydration shell of the polar head groups of the lipids needs to be removed.
7 of 11
The two monolayers of the plasma membrane in a human red blood cell …
have different overall electrical charges, with negatively charged phospholipids (e.g. phosphatidylserine) normally enriched in the inner monolayer.
8 of 11
On the plasma membrane of the archaeon Halobacterium salinarum, bacteriorhodopsin is found in high density in patches of purple membrane. This protein …
changes conformation in response to light
9 of 11
What do all β-barrel transmembrane proteins have in common?
The structural rigidity compared to α-helical transmembrane proteins
10 of 11
Misfolded proteins in the ER may actively undergo any of the following EXCEPT
Being expelled to the Golgi apparatus for disposal
11 of 11
Other cards in this set
Card 2
Front
During mitosis when does nuclear envelope breakdown occur?
Back
prometaphase
Card 3
Front
DNA replication and centrosome duplication occur during:
Back
Card 4
Front
The flexibility of a biological membrane is strongly influenced by;
Back
Card 5
Front
Based only on the nomenclature of a fatty acid, rank these fatty acids in order of likely melting temperature, from highest to lowest.
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