* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Cellular Respiration Check-in Questions: THESE Questions are
Survey
Document related concepts
Amino acid synthesis wikipedia , lookup
Artificial gene synthesis wikipedia , lookup
Mitochondrion wikipedia , lookup
Electron transport chain wikipedia , lookup
Fatty acid metabolism wikipedia , lookup
Blood sugar level wikipedia , lookup
Basal metabolic rate wikipedia , lookup
Metalloprotein wikipedia , lookup
Photosynthesis wikipedia , lookup
Photosynthetic reaction centre wikipedia , lookup
Light-dependent reactions wikipedia , lookup
Microbial metabolism wikipedia , lookup
Adenosine triphosphate wikipedia , lookup
Evolution of metal ions in biological systems wikipedia , lookup
Oxidative phosphorylation wikipedia , lookup
Citric acid cycle wikipedia , lookup
Transcript
Cellular Respiration Check-in Questions: THESE Questions are NOT meant to be an exhaustive list of questions from this topic! These questions are meant for us to practice on how to approach assessments for this course! 1. What would happen to the ATP production when a person is fasting or a lowcarbohydrate diet? Why? 2. Which statement(s) accurately describes the function of a metabolic pathway? a. The function of the citric acid cycle is oxidation of an acetyl group to CO2 with production of high-energy reduced compounds and ATP. b. The function of fermentation is to continue the oxidation of pyruvate in the absence of oxygen. c. The function of glycolysis is to begin catabolism by breaking glucose into two molecules of pyruvate, with a net yield of two ATP. 3. In one or two sentences, describe the essential role(s) of each of the following processes involved in energy transformations in cells. Include in your answer the major products of each process. a. Citric acid cycle b. Fermentation c. Respiratory electron transport chain 4. Drugs known as uncouplers facilitate diffusion of protons across the membrane. When such a drug is added, what will happen to ATP synthesis and oxygen consumption, if the rates of glycolysis and the citric acid cycle stay the same? a. Both ATP synthesis and oxygen consumption will decrease. b. ATP synthesis will decrease; oxygen consumption will increase. c. ATP synthesis will increase; oxygen consumption will decrease. d. Both ATP synthesis and oxygen consumption will increase. e. ATP synthesis will decrease; oxygen consumption will stay the same. 5. If the main purpose of cellular respiration is to produce ATP, why do glycolysis and the Krebs cycle only make 4 ATP by the time glucose is converted to carbon dioxide? 6. Calculation Question: a. If one ATP molecule holds 7.3kcal of potential energy, how much potential energy does one glucose molecule produce in cell respiration? b. One molecule of glucose actually contains 686kcal of potential energy. Where does the remaining energy go when glucose is reduced? c. What is the net efficiency of cell respiration if glucose contains 686kcal and only 277.4 kcal are produced? 7. Explain how it is better for a cell to use many reactions to oxidize glucose even though each reaction needs a specific enzyme (which is costly to the cell to produce).