Question

question 1 (1 point)
what cell part do the amoeba sisters consider the homeostasis king?
a cell membrane
b cell wall
c mitochondria

question 2 (1 point)
what type of molecules can diffuse directly through the phosopholipid bilayer?
a large and polar
b large and nonpolar
c small and nonpolar
d small and polar

Explanation:

Question 1

The Amoeba Sisters refer to the cell membrane as the "homeostasis king" because the cell membrane regulates what enters and exits the cell, maintaining the internal environment (homeostasis). The cell wall is more for structure/support (in plant/fungal cells), and mitochondria are for energy production (cellular respiration), not primarily for homeostasis regulation.

The phospholipid bilayer has a hydrophobic interior (due to the fatty acid tails of phospholipids). Small, nonpolar molecules (like oxygen, carbon dioxide) can dissolve in the hydrophobic region and diffuse directly through. Large or polar molecules have difficulty as they can't interact well with the hydrophobic interior (large molecules are too big, polar molecules are repelled by the hydrophobic region).

Answer:

a. cell membrane

Question 2