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24 Cards in this Set

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What is the formula for cellular respiration?
C6H12O6 + 6 O2 -> 6 H2O + 6 CO2 + ATP
Broadly, what does cellular respiration responsible for?
Conversion of chemical energy into energy that is immediately available to the organism
In cellular respiration, where is chemical energy typically stored?
In complex sugars.

Chemical energy is stored in fats, proteins and carbohydrates which converts ADP + Pi into ATP.
What are the three steps of the cellular respiration process?
1. Glycolysis

2. Krebs Cycle (citric acid cycle)

3. Oxidative Phosphorylation
What happens in glycolysis?
1 glucose -> 2 pyruvate + 2 ATP (net)
What happens in the Krebs cycle? What's another name for this?
Also known as the citric acid cycle.

1. Aerobic respiration: occurs in the presence of oxygen.

2. Completes breakdown of glucose by oxidation -> CO2 + ATP
What occurs in oxidative phosphorylation?
1. Electron transport chain (ETC) and chemiosmosis.
2. Powered by oxygen
3. Around 32-34 ATP are generated.
What type of yeast did we use in the lab?
Saccharomyces cerevisiae
What did we measure in the cellular respiration lab?

What did we use to measure it with?
1. Carbon dioxide.

2. CO2 gas sensor
What was the reaction equation used in the enzyme action lab?
2H2O2 -> 2H2O + O2
What product was measured in the enzyme action lab?
The rate of oxygen was measure.d
What two factors were taken into consideration in the enzyme action lab?
1. Temperature

2. Concentration
At what temperature did the enzyme best perform?
Room temperature (20-25 degrees Celsius)
At what concentration did the enzyme best perform?
With the highest concentration of 12 drops.
What is critical to remember about handling the O2 sensor?
The O2 gas sensor must remain upright at all times.
What does ppm stand for?
Parts per million
What is the independent variable?
What is the dependent value?
Where does cellular respiration take place?
The mitochondrion.
What sugars did the yeast BEST metabolize?

What is the hypothesis as to why?
1. Sucrose and glucose were best metabolized because they're simpler structures.

2. Fructose
What is fructose?
A monosaccharide
What is sucrose?
A disaccharide
What is glucose?
A monosaccharide
What are examples of polysaccharides?
Cellulose and starch