Question

Do expect the cell to produce more ATP from one glucose molecule or from one fatty acid molecule? Explain your answer. Indicate whether the following statements are true or false. If a statement is false, explain why it is false The proteins of the electron-transport chain remove a pair of high-energy electrons from the cofactors, NADH and FADH_2, after which the electrons move across the inner mitochondrial membrane to maintain the voltage gradient. Gluconeogenesis is a linear reaction pathway that the cell employs to generate glucose from pyruvate and is exactly the reverse of the reactions in the glycolytic pathway. With respect to the amount of energy stored in molecules of the body, 6 g of glycogen is the equivalent of 1 g of fat. Glycogen phosphorylase cleaves glucose monomers from the glycogen polymer, phosphorylating it at the same time so that it can be fed unchanged into the glycolytic pathway. In the final stage of the oxidation of food molecules, a gradient of protons is formed across the inner mitochondrial membrane, which is normally impermeable to protons. If cells were exposed to an agent that causes the membrane to become freely permeable to protons, which of the following effects would you expect to observe? The ratio of ATP to ADP in the cytoplasm would fall. NADH would build up. Carbon dioxide production would cease. The consumption of oxygen would fall. Pyruvate is an important metabolic intermediate that can be converted into several other compounds, depending on which enzyme is catalyzing the reaction. Which of the following cannot be produced from pyruvate in a single enzyme catalyzed reaction? lactate oxaloacetate citrate alanine For each of the following sentences, fill in the blanks with the best word or phrase selected from the list below. Not all words or phrases will be used, each word or phrase should be used only once. A carbon atom in a CO_2 molecule in the atmosphere eventually becomes a part of one of the enzymes that catalyzes glycolysis in one of your cells. The CO_2 first enters a cell in a corn leaf, where photosynthesis fixes the carbon to make it part of a sugar molecule, this travels from the leaf to an ear of corn, where it is as part of a polysaccharide _____ molecule in the corn seed. You then eat a corn chip made from the corn seed. You digest the corn seed, and the free _____ travels in your bloodstream, eventually being taken up by a liver cell and stored as _____. When required, this storage molecule breaks down into glucose 1-phosphate, which enters the glycolytic pathway. Glycolysis produces _____, which is converted into acetyl CoA, which enters the _____ Several intermediates in this process can provide the carbon skeleton for the production of _____, which are then incorporated into the enzymes that catalyze steps in glycolysis.

Answer 1

en Oxidahve 32 ATPS B-onidahon 129 PTP's NAD A /2 ATP Ackvahon 139 ATPs

-Hence irosticule talta acid produce more (ATP) thani mule of