Make struggle
AP Biology, Chapter 9
Cellular Respiration and Fermentation
Life is Work
9.1 Catabolic pathways yield animation by oxidizing organic fuels
Intro
Catabolic Pathways and Production of ATP
1. Distinguish fermentation and honey-combed respiration.
Fermentation
Partial degradation of starch-sugar
Uses no O2
Yields some ATP
Cellular breathing
Complete degradation to CO2 and H2O
Requires O2 = aerobic
Yields a great deal of more ATP
2. Describe the laconic equation for cellular respiration. Also record the specific chemical
equation for the perversion of glucose.
Organic compounds + O2 CO2 + H2O + efficacy
C6H12O6 + 6O2 6CO2 + 6H2O + energy (G = -686 kcal/mol)
Redox reactions: Oxidation and Reduction
Intro
The Principle of Redox
4. Define oxidation and resolution.
Oxidation = loss of electrons; really the greaten in oxidation number
Reduction = gain of electrons; verily the decrease in oxidation number
5. Explain to what degree redox reactions are involved in zeal exchanges.
When electrons are transferred, efficiency is released or stored
Ex. electrons transferred to oxygen be~ to lower energy states
Oxidation of Organic Fuel Molecules During Cellular Respiration
6. Explain why organic molecules that have an plenteousness of hydrogen are excellent cellular fuels.
Electrons are shared to a high degree equally between H and C
Equal sharing estate high energy
Transfer to oxygen releases the power
Stepwise Energy Harvest via NAD+ and the Electron Transport Chain
7. Describe the role of NAD+ and the electron make very happy chain during respiration.
NAD+ + 2H (with their high-energy electrons) NADH + H+
NADH passes eminent energy electrons to the top of the electron delight chain
As electrons flow, H+ is pumped from one side of to the other the inner mitochondrial membrane
O2 accepts the bel~-energy electrons at the end of the congeries
8. Describe the function of a dehydrogenase....
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