ECU Biology 1100 Chapter 7 Review Questions and Solutions
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Course
ECU BIO 1100
Institution
ECU BIO 1100
What is the cellular respiration equation? C6H12O6 + 6O2 --> 6CO2 + 6H2O + energy
What is a catabolic pathway? a metabolic pathway that releases energy by breaking down complex molecules to simpler molecules (enzymes to go to next step)
What is a redox reaction? an oxidation reaction paired wi...
ECU Biology 1100 Chapter 7 Review
Questions and Solutions
What is the cellular respiration equation? ✅C6H12O6 + 6O2 --> 6CO2 + 6H2O +
energy
What is a catabolic pathway? ✅a metabolic pathway that releases energy by breaking
down complex molecules to simpler molecules (enzymes to go to next step)
What is a redox reaction? ✅an oxidation reaction paired with a reduction reaction
Oxidation is ✅loss of electrons (and you are left with a +ion EX. NADH+)
Reduction is ✅gain of electrons (Note that adding electrons is called reduction; adding
negatively charged electrons to an atom reduces the amount of positive charge of that
atom.)
A reducing agent (is what?) ✅Electron donor
A oxidizing agent (is what?) ✅Electron acceptor
The more electronegative the more _____ is needed to take an electron away from it
✅Energy
What is a coenzyme? ✅an organic nonprotein helper for catalytic reactions.
what is an electron carrier? ✅a compound that can accept a pair of high-energy
electrons and transfer them, along with most of their energy, to another molecule
(NAD+)
electron transport chain ✅A sequence of electron carrier molecules (membrane
proteins) that shuttle electrons during the redox reactions that release energy used to
make ATP.
The stages of cellular respiration ✅glycolysis, the citric acid cycle, and oxidative
phosphorylation
Glycolysis ✅the breakdown of glucose by enzymes, releasing energy and pyruvic acid.
(in eukaryotes, pyruvate enters the mitochondrion and is oxidized to a compound called
acetyl CoA, which enters the citric acid cycle)
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