AP Biology Cellular Respiration Notes Essay Example.
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AP BIOLOGY OUTLINE FOR CELLULAR RESPIRATION:. 1) Glycolysis. 2) Fermentation. C. Pathways of aerobic respiration. 1) Krebs cycle. 2) Electron transport system. D. Sites of respiratory enzymes. E. Factors affecting the rate of respiration. ESSAY QUESTIONS: 1963: Compare the intermediate steps in the fermentation of a molecule of sugar by yeast with respiration in a muscle tissue cell.
There are many cycles in biology including cycles that occur inside organisms such as the cardiac cycle, calvin cycle and the krebs cycle. There are also biological cycles that occur around us in the outside world such as the carbon cycle and the nitrogen cycle. I have decided to focus my essay on the biological cycles that occur inside organisms.
Oxidation of intermediates in the Krebs cycle x Formation of a proton gradient by the electron transport chain (b) Use each of the following observations to justify the claim that glycolysis first occurred in a common ancestor of all living organisms. x Nearly all existing organisms perform glycolysis. Glycolysis occurs under anaerobic conditions.
Glycolysis and the Krebs cycle. Both processes produce ATP from substrates but the Krebs cycle produces many more ATP molecules than glycolysis! A-Level Biology Revision.
AP Biology Essay Questions. The following is a comprehensive list of essay questions that have been asked on past AP exams. The questions are organized according to units. The lab-based questions have been removed. Unit 1 (Basic Chemistry and Water) 1. The unique properties (characteristics) of water make life possible on Earth. Select three.
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The citric acid cycle, also known as the Krebs cycle or tricarboxylic acid (TCA) cycle, is the second stage of cellular respiration. This cycle is catalyzed by several enzymes and is named in honor of the British scientist Hans Krebs who identified the series of steps involved in the citric acid cycle. The usable energy found in the carbohydrates, proteins, and fats we eat is released mainly.
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The citric acid cycle, or Krebs cycle, is used to generate NADH from pyruvate. The NADH is then used in the electron transport chain to generate a proton gradient, which fuels oxidative phosphorylation. Since oxidative phosphorylation requires an oxygen molecule, the citric acid cycle and electron transport chain cannot continue in anaerobic.
The citric acid cycle, also known as the Krebs cycle, is involved in cell respiration and produces NADH and FADH2 for the electron transport chain. The Krebs cycle also produces two ATP, but much more ATP is produced later, in the electron transport chain, so that is not its main purpose.
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AP Biology I Investigation 6 AP Bio: Lab 6 Cellular Respiration Introduction Some knowledge that is needed before performing this lab are as follows: First of all, cellular respiration is the metabolic processes whereby certain organisms obtain energy from organic molecules. This process includes glycolysis, the Krebs cycle, and the Electron Transport Chain. Glycolysis is a process that takes.
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The AP Biology exam will not ask you to identify by name the enzyme that catalyzes the third step of glycolysis, nor will it require you to name the fourth molecule in the Krebs cycle. But it will ask you questions that require an understanding of the respiration process.
AP Biology Essay Questions The following is a comprehensive list of essay questions that have been asked on past AP exams. The questions are organized according to units. Unit 1 (Basic Chemistry and Water) 1. The unique properties (characteristics) of water make life possible on Earth. Select three properties of water and: a. for each property.
Long Essays 1) Explain what occurs during the Krebs (citric acid cycle and electron transport chain by describing the following: a. The location of the Krebs cycle and electron transport chain in the mitochondria b. The cyclic nature of the reactions in the Krebs cycle c. The production of ATP and reduced in the Krebs cycle d.