Importance of ATP

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  • Created by: Ruhab21
  • Created on: 27-09-20 00:12
Define exergonic reaction
A reaction that releases energy
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Define endergonic reaction
Define endergonic reaction
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Define endergonic reaction
The addition of phosphate
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Define electrochemical gradient.
Created when protons are pumped into a cavity
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Define electron carrier
High energy electrons are passed from one to the next, releasing energy as they pass
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Define oxidative phosphorylation
The production of ATP by chemiosmosis at the electron transport chain; oxygen is the final electron acceptor.
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Define substrate level phosphorylation
The production of ATP during glycolysis + Krebs cycle
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What are obligate aerobes
Living organisms that have respire aerobically for survival.
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What are obligate anaerobes?
They cannot live when oxygen is present and must respire anaerobically.
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What are facultative anaerobes?
Organisms that respire better aerobically but can also grow or respire in the absence of oxygen. What are the uses of the energy
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What are the uses of the energy produced in respiration?
Synthesis of ATP and heat
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How much energy is released in the hydrolysis of a single ATP molecule?
30.6kJmol-1
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n an exergonic reaction, what happens to the substrate?
It is oxidised and energy is released
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In an endergonic reaction, what happens to the molecule?
It is reduced and energy is taken in.
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Define Chemiosmosis
1) Synthesis of ATP through movement of protons down their electrochemical gradient across a partially permeable membrane 2) As protons move down, energy is released ADP + Pi -----> ATP
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Compare between the roles of Photosynthesis and Respiration
1) Respiration :- (H20 produced when H+ reacts with e- , has 3 pumps) 2) Photosynthesis :-
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State the Final electron acceptors between Photosynthesis and Respiration
O2 for Respiration and NADP for Photosynthesis
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Compare Kreb Cycle and Calvin Cycle (Part 1 Kreb Cycle only)
1) ATP made by SLP as 5C Compound converted to 4C 2) Uses NADH and FADH2 as co enzymes and also Co enzyme A fuses with Acetate to make Blah blah 3) Removal of CO2 by Decarboxylase and removal of H by Dehydrogenase 4) 4C made every cycle
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Compare Kreb Cycle and Calvin Cycle (Part 2 Calvin Cycle only)
1) RUBISCO is used for fixiation of CO2 2) ATP from LDR for GP to TP and TP to RuBP 3) NADPH2 reduces GP 4) Cycle regens RuBP for more CO2
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Card 2

Front

Define endergonic reaction

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Define endergonic reaction

Card 3

Front

Define endergonic reaction

Back

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Card 4

Front

Define electrochemical gradient.

Back

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Card 5

Front

Define electron carrier

Back

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