anabolism is the building up of molecules, releases H2O, endergonic; catabolism breaks down molecules, uses H2O(hydrolytic), exergonic
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15
How are oxidative phosphorylation and photophosphorylation similar?
a membrane associated electron transport chain. creation of a proton gradient. harvesting energy of the proton gradient by making ATP with ATP synthase
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15
List four compounds that can be made from pyruvic acid by an organism that uses fermentation.
What do chemoautotrophs use as their energy source
use inorganic compounds as their energy source and carbon dioxide as their carbon source.
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15
How do photoautotrophs produce energy
use light as energy source fixed carbon from CO2 via the Calvin-Benson cycleÂ
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15
What is feedback inhibition?
metabolic control in which the end product of a metabolic pathway acts as an inhibitor of an enzyme within that pathway
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15
Compare and contrast the light-dependent and light-independent reactions of photosynthesis.
light dependent-When H2O is oxidized-O2 produced, H2S is oxidized, S granules produced, ETC. Light-independent-CO2 is used to synthesized to make sugars
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15
What is the purpose of metabolic pathways?
chemical reactions in a cell that build and breakdown molecules for cellular processes;maintain cells energy balance
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15
What does a cell need to produce energy
an electron donor (organic or inorganic), a system of electron carriers, and a final electron acceptor (organic or inorganic)
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15
What are the principal products of the Krebs cycle?
Net - per 2 acetyl CoA- 4 CO2, 6 NADH, 2 FADH2, 2 ATP are by substrate- level phosphorylation
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25
Is feedback inhibition competitive or non competitive?
noncompetitive Because the active site is not used for attachment of the inhibitor. The inhibitor instead attaches to the allosteric site
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15
Compare and contrast cyclic and noncyclic photophosphorylation
they are both light dependent, have ETC; cyclic-only P1 is used, no H2O splitting, E- come from Light, non-cyclic makes O2, ATP, by spitting H2O and chemiosmosi
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10
Describe the major types of anabolism and their relationship to catabolism.
Carbs, lipids, protiens nucleotides being built up by anabolism- catabolism is the breakdown of chemicals to provide energy and building blocks for anabolism.