The following describes the arrangement of the phospholipid heads within the cell membrane: Oa. One row faces the extracellular fluid Ob. One row faces the intracellular fluid O c. They face each other in the interior of the cell membrane Od. A and B Oe. All of the Above

Fat soluble substance diffuse through the following regions of the selectively permeable cell membrane: O a Phospholipid Heads Ob Phospholipid Tails O c. Proteins Od A and C Oe. All of the Above

Match the following statement related to membrane transport processes to the appropriate term or terms: passive transport, facilitated transport, active transport. A transporter (or carrier) protein is necessary. (Select all that apply.) passive transport facilitated transport active transport O O

Which of the following are proteins? O cholesterol O ion channels O phospholipids O glycolipids O none of the above

Which statement best fits the following diagram? The purplish dots are sugar molecules and the blue areas are water molecules. On the left side the water molecwles have a concentration of 99.1% and on the right side the water molecules have concentration of 99.9%. 1) The level of fluid on the left will rise because water will move by osmosis through the membrane. 2) The level of the fluid on the left will fall as water moves to the right by osmosis. 3) The level of the water on the left will rise as a result of sugar molecules diffusing through the membrane. 4) The level of the water on the left will fall as sugar molecules diffuse through the membrane.

Active transport involves Select one: O a. Production of adenosine triphosphate (ATP) O b. Transport of solute down a concentration gradient O c. Osmosis O d. Pumping solutes across the membrane O e. Diffusion of solute through the lipid bilayer of a membrane

In the cell membrane, the hydrophilic part of the phospholipid molecule: Group of answer choices a.faces the exterior of the cell. b.faces the interior of the cell. c. is in the center of the phospholipid bilayer. d. both A and B.

Which of the following is a way for electrolytes in an aqueous solution to move from an area of high solute concentration to an area of low concentration? O a. Active transport O b. Osmosis O c. Simple diffusion Od. Facilitated diffusion O e. None of these