plasma membrane

Question 1

phospholipid

Answer 1

polar phosphate head, hydrophilic lipid insoluble

Question 2

fatty acid chain

Answer 2

nonpolar, hydrophobic,

Question 3

features of plasma membrane

Answer 3

channel or protein carrier- transports molecules in the membrane
glycoproteins- communication cell-to-cell
cholesterol- maintains fluid arrangement
peripheral proteins- cell signaling

Question 4

influences of whether a molecule can pass thru membrane

Answer 4

cell size
polar or nonpolar
insoulable or lipid soulable
hydrophilic or hydrophobic
concentration of gradient