PSIO 303 EXAM 1 QUESTIONS AND
ANSWERS
Why would cells have a tendency to swell? - ANSWER-Because cytoplasm contains negatively
charged proteins that cannot exit, so cells naturally gain water and swell
What prevents cells from actually swelling? - ANSWER-It is effectively impossible for sodium ...
4) Wedges into bilayer and has effect on fluidity by interacting with hydrocarbon groups on phospholipid
tails
What are the two ways that lipids can move within the bilayer? - ANSWER✔✔-Lateral diffusion and
rotation
What is the difference between saturated and unsaturated fatty acids? - ANSWER✔✔-Saturated = no
double bonds
Unsaturated = one or more double bonds
What are the matrix binding domains of proteins? - ANSWER✔✔-- Ensure that proteins don't move
around and that they are attached to their anchored positions
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