Lec 15

Question 1

Types of plasma membranes

Answer 1

RBS plasma membrane
Phospholipids
Glycolipids
Sterols/steroids

Question 2

Plasma membrane asymmetry

Answer 2

Outer face faces exterior

Inner face faces cytosol

Question 3

Phospholipids are in

Answer 3

one side or the other

Phosphatidylcholine is mostly found in the outer face

Phosphatidylserine is mostly found in the inner face

Question 4

Apoptosis happens when

Answer 4

The cell moves the inner face lipids to the outsideG

Question 5

Glycolipids

Answer 5

Only found on outer face because they are meant to protect the cell

Question 6

Sterols and steroids

Answer 6

Found in both sides of the membrane to help it function in cold temperatures and improve fluidity

Question 7

Phospholipid bilayer

Answer 7

Made at ER

Phospholipids made on cytosol side of ER

Question 8

Scramblases

Answer 8

Randomly move any phospholipid from one side to the other

Same number each side

Question 9

Flippases

Answer 9

Move specific phospholipids to the appropriate side

Different types in each side