CELL BIO: Please answer as many as you can. I need them to be them 100% correct.

Question

CELL BIO: Please answer as many as you can. I need them to be them 100% correct. if you are at all unsure, please skip it. i dont need an explanation. thank you. even though answers are circled Im not sure if theyre right or not

thank you!!

54. What is the driving force behind the formation of the phospholipid bilayer? The repelling nature of the hydrophilic tails of the phospholipids and the aqueous environment in and out of the cell The repelling nature of the hydrophobic tails of the phospholipids and the aqueous environment in and out of the cell a. b. c The attraction between the hydrophobic heads of the phospholipids and the aqueous environment in d. and out of the cell The attraction between the hydrophilic heads of the phospholipids and the aqueous environment in and out of the cell 55. Flippases a. b. c. catalyze the movement of phospholipids across the layers of the phospholipid bilayer are found on the surface of the ER membrane ensure that membranes grow evenly

Explanation / Answer

54. Option b - repelling nature of hydrophobic tails of the phospholipids and aqueous environment in and out of the cell

55. Option D - All of the above options

63. Option B - Filtering ions by charge

66. Option A - Stress gating channel

89. Option C - Most plentiful cytoskeleton in the cell

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