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Difference between fermentation and cellular respiration
Fermentation doesn't require oxygen, but cellular respiration does
The formula (with names) for the catabolic degradation of glucose by cellular respiration
Organic Compounds + Oxygen --> Carbon dioxide + Water + Energy
Both cellular respiration and photosynthesis are redox reactions. In redox reactions, pay attention to the flow of electrons. What is the difference between oxidation and reduction?
Oxidation: loss of electrons
Reduction: addition of electrons
The following is a generalized formula for a redox reaction:
Xe- + Y --> X + Ye-
In the generalized formula, ___ is the reducing agent & __ is the oxidizing agent
reducing agent: Xe-
oxidizing agent: Y
when compounds lose electrons, they ___ energy
lose
when compounds gain electrons, they ___ energy
gain
In cellular respiration, electrons are not transferred directly from glucose to oxygen. Following the movement of hydrogens allows you to follow the flow of electrons. What electron carrier is hydrogen transferred to first?
NAD+
NAD+ is a coenzyme. What are coenzymes?
An organic molecule serving as a cofactor. Most vitamins function as coenzymes in metabolic reactions.
Describe what happens when NAD+ is reduced. What enzyme is involved?
The enzymatic transfer of 2 electrons and 1 proton (H+) from an organic molecule in food to NAD+ reduces the NAD+ to NADH; the second proton (H+) is released. The enzyme involved is dehydrogenase.
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