Question

the inside of a phospholipid bilayer is known as being:
hydrophobic
hypotonic
hydrophilic
question 9 (2 points)
stimulation of a cell by a molecule that the cell itself makes is called ______ stimulation.
autocrine
paracrine
anacrine
question 10 (2 points)
what property of the phospholipid bilayer allows proteins to move laterally in the membrane?
proteins attract each other with opposite charges
phospholipid molecules are not covalently bonded to each other

Explanation:

Question (about phospholipid bilayer inside property)

Phospholipids have a hydrophilic head and hydrophobic tail. In the bilayer, tails face inward, so the inside is hydrophobic. Hypotonic relates to solution osmolarity, hydrophilic is for the heads.

Autocrine stimulation is when a cell responds to a molecule it produces. Paracrine is between nearby cells, anacrine is not a standard term here.

Phospholipids in the bilayer are held by non - covalent interactions (like hydrophobic interactions), not covalent bonds. This allows them to move, enabling protein lateral movement. Opposite charge attraction isn't the main reason for this.

Answer:

hydrophobic

Question 9 (cell stimulation by its own molecule)