Chapter 7: Cellular Respiration Flashcards
What does a oxidation reaction do?
Oxidation strips electrons from atoms.
What does a reduction reaction do?
Reduction adds electrons to atoms.
What are electron carriers?
Electron carriers shuttle high energy electrons between compounds in biochemical pathways.
What are 2 ways to produce ATP?
Substrate-level phosphorylation and Oxidative Phosphorylation
Cells produce ATP from glucose in a 4-stage process. What are the four stages?
- Glycolysis / Pyruvate Oxidation
- Citric Acid Cycle
- Electron Transport Chain
- ATP Synthesis
Where do biochemical reactions of cellular respiration begin?
In the Cytosol
What does Phase 1 & Phase 2 of Glycolysis do?
- Phase 1: consumes energy
- Phase 2: releases energy (produces ATP by substrate- level phosphorylation)
Biochemical reactions of cellular respiration proceed to the __________ following glycolysis in the cytosol.
Mitochondria
Name a molecule that functions as an energy carrier in cellular respiration? (e.g. during glycolysis)
NAD+ or NADH
The carbon fixation step of photosynthesis (Calvin Cycle) uses the carbon atom from
Carbon Dioxide
Fermentation is a biochemical process that regenerates NAD+ for glycolysis in the absense of
Oxygen
what is the location of photosynthetic light reaction in the chloroplast? (Also holds the highest concentration of protons)
Thylakoid Space
Where does the Citric Acid Cycle take place?
Mitochondrial Matrix
Where does the Electron Transport Chain & ATP Synthesis take place?
Mitochondrial Inner Membrane
