Question

B) consist of a mosaic of polysaccharides and proteins are a phospholipid bilayer between two layers of hydrophilic proteins D) are a sin phospholipids and proteins gle layer of glycolysis and the citric acid cycle, but before the electron transport chain and with oxidative the carbon has broken down to point in the skeleton of some net gain of ATP. Most of the energy from the original glucose molecule at that process, however, is in the forma D) g ucose C) acetyl-CoA NADH A) pyruvate 35) The sodium-potassium pump is called an electrogenic pump because it gradient A) is used to drive the transport of other molecules against a concentration B) ionizes sodium and potassium atoms C) contributes to the membrane potential D) pumps equal quantities of Nat and K+ across the membrane following most accurately describes selective permeability? 36) Which of the A) Only certain molecules can cross a cell membrane B) An input of energy is required for transport. Lipid-soluble molecules pass through a membrane. D) There must be a concentration gradient for molecules to pass through a membrane. 37) have isolated a previously unstudied protein, identified its complete structure in detail determined that it catalyzes the breakdown of a large substrate. You notice it has two bindi sites. One of these is large, apparently the bonding site for the large substrate; the other is s possibly a binding site for a regulatory molecule. What do these findings tell you about th mechanism of this protein? A) It is probably an enzyme that works through competitive inhibition. B) It is probably an enzyme that works through allosteric regulation. C) It is probably a structural protein that is involved in cell-to-cell adhesion. D) It is probably a cell membrane transport protein-like an ion channel. patient was involved a serious accident and lost a large quantity of blood. In an atte lenish body fluids, distilled water-equal to the volume of blood lost-is added to ectly via one of his veins. What will be the most probable result of this transfusion The patient’s red blood cells will shrivel up because the blood has become hypo compared to the cells. The patient’s red blood cells will burst because the blood has become hyperto o the cells. he patient’s red blood cells will shrivel up because the blood has become hy ompared to the cells