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Some examples from this set of practice questions
1.
What is an endergonic reaction?
Answer: A reaction that absorbs or uses work energy
2.
What is an exergonic reaction?
Answer: A reaction that releases work energy
3.
What is an ATP coupled reaction?
Answer: 1. Bond that is created when ADP is phosphorylated into ATP contains energy 2. When enzymes reverse the reaction and break the bond, this energy is released 3. Energy released is used to power the energy requiring processes in all cells ATP more efficiently couples energy released by breaking down food to energy required by cellular endergonic processes (Energy released by exergonic reactions are used to power endergonic reactions)
4.
What is a REDOX coupled reaction?
Answer: Reduction-Oxidation (Easy mnemonic: OIL RIG) Oxidation is Loss [of electrons] Reduction is Gain [of electrons] Oxidizing AGENTS accept electrons Reducing AGENTS donate electrons Reduced coenzymes: NADH and FADH2 Oxidized coenzymes: NAD and FAD
5.
What is a catabolic reaction?
Answer: A reaction that releases energy through breaking down larger molecules into smaller molecules such as hydrolysis and oxidation. Examples include the breakdown of glucose, fatty acids, and amino acids.
6.
What is an anabolic reaction?
Answer: A reaction that uses energy to synthesize larger energy storage molecules using ATP such as dehydration synthesis and reduction reactions. Examples include the building of glucose from CO2, proteins from amino acids, and DNA from nucleotides.
7.
What are the three main steps of cellular respiration?
Answer: 1. Glycolysis 2. Citric Acid/Kreb\'s/TCA Cycle 3. Electron Transport Chain
8.
What is the equation for cellular respiration?
Answer: C6H12O6 (glucose) 6O2 6CO2 6H20 Energy = ~30-32 ATP
9.
What are the reactants and products of glycolysis and what is the NET ATP gained?
Answer: Reactants: glucose and 2 ATP, 2 NAD , and 4 ADP + P Products: 2 pyruvic acids (pyruvate) NET ATP: 2 ATP
10.
What are the reactants and products of the Krebs Cycle and what is the NET ATP gained?
Answer: Reactants: 2 Acetyl CoA, 6 NAD , 2 FAD, 2 ADP, 2 Pi Products: 4 CO2, 6 NADH, 6 H , 2 FADH2, 2 ATP NET ATP: 2 ATP
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