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17 Cards in this Set
- Front
- Back
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Why is glucose such an important molecule for organisms?
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Creation of ATP (Glycolysis)
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Outline the three ways that ATP is generated.
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Phosphorylation (addition of Phosphate):
-Substrate-level (ADP->ATP) -Oxidative (ETC->release E.) -Photophosphorylation (Light E. converted to chemical E.) |
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What is the purpose of metabolic pathways?
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Energy release needs to be in controlled, small bursts
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What happens during the preparatory and energy-conserving stages of glycolysis?
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Prep: Glucose->DHAP/GP, use 2ATP
E.Conserve:GP->Pyruvic acid, form 4ATP, 2NADH |
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What is the value of the pentose phosphate and Entner-Doudoroff pathways if they produce only one ATP molecule?
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They form 2 NADPH molecules
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What are the principal products of the Krebs cycle?
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6 NADH (+ 2NADH from pyruvic acid->acetyl CoA conversion)
2 FADH 2 ATP |
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How do carrier molecules function in the electron transport chain?
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Capable of oxidation/reduction:
-flavoproteins: riboflavin (alternate ox./re.) -cytochromes: iron (alternate ox./re. Fe forms) -ubiquinones: non-protein carriers |
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Compare the energy yield (ATP) of aerobic and anaerobic respiration.
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36/38 ATP aerobic
anaerobic: less b/c Krebs cycle/ ETC vary |
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List four compounds that can be made from pyruvic acid by an organism that uses fermentation.
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-Lactic acid
-Ethanol + CO2 -Propaionic acid -Butyric acid |
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What are the end-products of lipid and protein catabolism
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Compounds enter Krebs cycle, forming ATP, NADH, FADH, C-chain
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How is photosynthesis important to catabolism?
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1
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What is made during the light-dependent reactions?
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1
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How are oxidative phosphorylation and photophosphorylation similar?
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1
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Summarize how oxidation enables organisms to get energy from glucose, sulfur, or sunlight.
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1
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Almost all medically important microbes belong to which of the four aforementioned groups?
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1
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Where do amino acids required for protein synthesis come from?
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1
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Summarize the integration of metabolic pathways using peptidoglycan synthesis as an example.
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1
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