Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
24 Cards in this Set
- Front
- Back
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?
|
X
|
|
What is the dependent value?
|
Y
|
|
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
|