The fluid mosaic model of membrane structure suggests that membranes Question 3 options:

are composed of a single fluid layer of phospholipids and proteins

are composed of a fluid bilayer of fatty acids with proteins associated on the outer and inner surfaces

are composed of protein molecules embedded in a fluid bilayer of phospholipids

are composed of a fluid phospholipid bilayer sandwiched between two layers of hydrophilic proteins

Im is in a crowd of people at the mall looking for his girlfriend tammy, who was supposed to meet him for dinner. jim realizes tammy is across the room as he catches a whiff of her overpowering perfume, 'paris #6'. which process explains why jim is able to smell the perfume?

Lactase is essential for digesting lactose in milk. this enzyme is specific for this sugar. why? molecules and active sites vary in size; only properly sized molecules can fit. there is a precise compatibility between the active site and the lactose molecule. specificity refers to the action of the enzyme, such as hydrolysis, and relatively few molecules can be hydrolyzed. reaction-specific enzymes assume a fit by folding around the most numerous substrate molecules.

All other things being equal the size of a population will decrease if