The Citric Acid Cycle (Krebs Cycle)

25 July 2022
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It is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidization of acetate derived from carbohydrates, fats and proteins into carbon dioxide.
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What is the Citric Acid Cycle?
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Acetate (in the form of Acetyl- CoA) and water
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In this cycle, in consumes what?
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NAD+ and NADH
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In this cycle, it reduces what?
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Carbon Dioxide
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In this cycle, it produces what?
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The matrix of the mitochondrion
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In eukaryotic cells, the citric acid cycle occurs where?
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Aerobic
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The Krebs cycle is a key component of the metabolic pathway by which all _______ organisms generate energy.q
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Faster
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Is glucose consumption in an anaerobic environment faster or slower the glucose consumption under aerobic conditions?
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Energy for the cell
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Products of the citric acid cycle are used to produce what?
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A central metabolic pathway for generating building blocks for the cell.
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The Krebs Cycle serves as what?
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When Acetyl-CoA enters the Krebs cycle it combines with a four-carbon acid called oxaloacetic acid. The combination forms the six-carbon acid called citric acid.
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Where does citric acid come from?
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Oxaloacetic acid
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What is the final product at the end of the Krebs Cycle?
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Second
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Which stage of cellular respiration is the Krebs Cycle?
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Tricarboxylic Acid Cycle
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TCA stands for what?
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Glucose
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Within the Krebs cycle, energy in the form of ATP is usually derived from the breakdown of what sugar?
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Carbohydrates, fats, and proteins into carbon dioxide, and converts water into serviceable energy.
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The metabolic pathway of the citric acid cycle chemically converts what to what?
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Second
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Is the Krebs Cycle the first, second, or third cycle of AEROBIC respiration?
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Because citric acid is the very first product generated by this sequence of chemical conversions, and it is also regenerated at the end of the cycle.
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Why is the Krebs Cycle also known as the citric acid cycle?
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Pyruvate
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Krebs Cycle starts with what, which was what Cellular Respiration ended with?
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Metabolism
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set of chemical reactions through which an organism builds up or breaks down materials as it carries out its life processes
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Catabolism
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breakdown of more complex substances into simpler ones with release of energy