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Cellular Respiration
Flash Cards for Biology
Question | Answer |
---|---|
What is the formula for Cellular Respiration? | C6H12O6+O6 -> 6CO2+6H2O+energy Sugar+Oxygen -> Carbon Dioxide+Water+Energy |
What is a calorie? | A calorie is the amount of energy needed to raise the temperature of 1 gram of water 1 Celsius degree. |
How many calories make up 1 Calorie? | 1000 (kilo-calorie) |
Cellular Respiration begins with what pathway? | Glycolysis |
Does glycolysis release a lot of energy? | No, only 2 ATP |
What is Cellular Respiration? | The process that releases energy by breaking down food molecules in the presence of oxygen. |
What would be the problem if cellular respiration took place in just one step? | All energy from glucose would be released at once and most would be lost in the form of light and heat. |
What are the three stages of glycolysis in order? | Glycolysis, The Krebs Cycle, Electron Transport Chain |
Where does Glycolysis take place? | In the cytoplasm of a cell |
Where do the Krebs Cycle and Electron Transport Chain take place? | In the mitochondria(powerhouse) of a cell |
What is Glycolysis? | The process in which one molecule of glucose is broken in half producing 2 molecules of pyruvic acid and 3 carbon compound. |
How does the cell get glycolysis going? | The cell invests 2 ATP molecules to gain 4, a net gain of 2. |
If the cell uses 2 ATP molecule at the beginning of glycolysis, how does it end up with a net gain of 2 ATP molcules? | The glucose invests 2 ATP in the beginning of glycolysis, at the end of glycolysis it gains 4 ATP molecules, when you take the amount invested out of the amount gained you have a total of 2. |
What is NAD+? | An electron carrier. |
What is the function of NAD+ in glycolysis? | The function of NAD+ in glycolysis is to help pass energy from glucose to other parts of the cell. |
Why can glycolysis supply energy to cells when oxygen is not available? | It doesn't require oxygen. |
What problem does a cell have when it generates large amounts of ATP from glycolysis? | In just a few seconds all of the cells available in NAD+ are filled with electrons. |
What is fermentation? | The process that releases energy from food molecules in the absence of oxygen, pathway does not require O2. |
How does Fermentation allow glycolysis to continue? | It converts NADH back into NAD+. |
Is fermentation aerobic(with oxygen)or anaerobic(without oxygen)? | Aerobic. |
What are the two main types of fermentation? | Alcoholic and Lactic Acid. |
What organisms use alcoholic fermentation? | Yeasts and a few other microorganisms. |
What is the equation for alcoholic fermentation after glycolysis? | pyruvic acid+NADH -> Lactic Acid+NAD+ |
What happens to the small amount of alcohol produced in the alcoholic fermentation during the baking of bread? | It evaporates. |
What does lactic acid fermentation convert into lactic acid? | Glucose. |