cellular respiration 8.3. i. cellular respiration a.cellular respiration- the process that breaks...
TRANSCRIPT
Cellular Respiration
8.3
I. Cellular Respiration
A. Cellular Respiration- The process that breaks down food molecules (glucose) into ATP1. Takes place mostly in the mitochondria
I. Cellular Respiration
B. Aerobic- Requires oxygen
C. Anaerobic- Does NOT require oxygen
I. Cellular Respiration
D. 3 Stages1. Glycolysis
2. Citric Acid Cycle3. Electron Transport Chain
a) Oxygen is the final electron acceptor required to start ETC
I. Cellular Respiration
See overhead for charts on glycolysis, acetyl coA formation, citric acid cycle and electron
transport chain
I. Cellular Respiration
See overhead for charts on glycolysis, acetyl coA formation, citric acid cycle and electron
transport chain
II. Fermentation
A. Occurs during times of intense exercise until oxygen is available again
II. FermentationB. Lactic Acid Fermentation
1. Glucose is converted pyruvic acid2. Pyruvic acid is converted to lactic acid
a. Causes muscle fatigue3. 2 ATP are produced
II. Fermentation
4. Anaerobic5. Takes place in mitochondria
II. Fermentation
C. Alcoholic Fermentation1. Glucose is converted to pyruvic acid2. The pyruvic acid is broken down into CO2 and alcohol3. 2 ATP are created
II. Fermentation
4. Anaerobic5. Takes place in mitochondria of yeast
II. Fermentation
4. Alcoholic fermentation is used in:
a. ethanol productionb. bread bakingc. beer & wine
5. Yeast do the fermentation
RECAP- What is the goal of
cellular respiration?- What are the 3 stages of
cellular respiration?- What are the beginning
reactants and ending products of each stage?
RECAP
- Why is oxygen important in respiration?
- What is the difference between lactic acid fermentation and alcoholic fermentation?