PCB 3023 - Cell Biology Exam 2 Review
Practice Questions and Answers
where can cell membranes be found? - Answer️️ -1. enclosing the
cell
2. enclosing the organalles
why does the mitochondria has two membranes? - Answer️️ -to
increase the surface area inside
membrane functions - Answ...
Molecular Cell Biology PCB 3023 BROWARD COLLEGE/ UNIVERSITY of
SOUTH FLORIDA/ UCF COLLEGE Of Sciences
phospholipids are synthesized - Answer✔️✔️-only in the cytosolic
monolayer of the ER membrane
(T/F) membranes lose their orientation during transport -
Answer✔️✔️-false
movements exhibited by lipids in membranes - Answer✔️✔️-1. lateral
diffusion
2. trasverse fluctuation
3. rotation
4. flexion
5. flip-flop
fluidity in the membrane depends on - Answer✔️✔️-- temperature
- lipid chemistry
*many other factors*
transmembrane proteins associate to the lipid bilayer by -
Answer✔️✔️-- single alpha helix
- multiple alpha helices
- rolled-up beta sheet
lipid anchored proteins associate to the lipid bilayer - Answer✔️✔️--
via non covalent interaction
3
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