Title: Cellular Respiration
1Cellular Respiration
- Do Now
- 1. Take out homework
- 2. What do you think respiration is? Is it the
same as cellular respiration?
2Cellular Respiration
- Is a complex biochemical pathway that breaks down
organic chemicals in order to make ATP.
3There are two main types of respiration
- Aerobic respiration requires oxygen
- Anaerobic respiration does not require oxygen.
4Glycolysis The 1st Step
Glucose is split in half, which releases some
energy. The cell can make 2 ATP molecules from 2
ADP P using the energy. Pyruvic acid is the
end-product. Energy-carrying molecule NAD is
also recharged with electrons.
5The products of glycolysis are used in two
different ways
6Our Respiration Experiment
Yeast are unicellular eukaryotes. They are
facultative anaerobes. Organisms like these can
perform both aerobic or anaerobic respiration.
7Yeast Without Oxygen produce Alcohol.
8Yeast with oxygen respire just like humans
aerobicaly.
9Hypothesize Predict!
Read the Introduction to the lab, and formulate
your hypothesis and prediction based on what you
already know about living things.
10Fermentation Chemical Recycling
Alcoholic Fermentation
11Lactic Acid Fermentation you do this!
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13Aerobic Respiration
- 3 main steps
- Glycolysis splits sugar into 2 pyruvate molecules
- Krebs Cycle burns pyruvate to make energy CO2
- E- trans. Chain in mitochondria produces MANY
MANY ATP
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16Recap
- Cellular Respiration Is
- Two types
- 1st step
- Whats the point?
- Homework Read pp. 127-130, finish skeleton
notes for 7.1