What is the purpose of the cellular respiration lab?
Compare the rates of cellular respiration of different organisms OR investigate an environmental factor on rate of cellular respiration. Calculate the rate of reaction of cellular respiration for different organisms and use this data to explain what is occurring at the cellular level.
What is the purpose of the vial with only glass beads?
The purpose of the beads is to ensure that each respirometer is uniform in volume. The vial with glass beads alone will permit detection of any changes in volume due to atmospheric pressure changes or temperature changes.
How do you check cellular respiration?
Plants absorb carbon dioxide and then convert it into oxygen. One of the easiest ways to observe the respiration process at work is to get a potted plant and wrap the leaves in plastic wrap. Next, put your wrapped plant in a sunny place. In a few hours, you will see that the plastic has become moist.
How does cellular respiration affect the body?
Your body cells use the oxygen you breathe to get energy from the food you eat. This process is called cellular respiration. During cellular respiration the cell uses oxygen to break down sugar. Breaking down sugar produces the energy your body needs.
What is the advantage of cellular respiration?
A major advantage of aerobic respiration is the amount of energy it releases. Without oxygen, organisms can just split glucose into two molecules of pyruvate. This releases only enough energy to make two ATP molecules. With oxygen, organisms can break down glucose all the way to carbon dioxide.
What factors affect cellular respiration lab?
Various factors, such as temperature change, will affect respiration, as well as the chemical oxidation of glucose. Oxygen consumption during respiration can then be measured as a change in gas volume by using a respirometer.
What is the difference between germinating and Nongerminating?
Germination is the growth processes of a seed. It requires a lot of energy to break the seed coat and as it continues to grow this energy need increases. Non-germinating seeds, however, are dormant and use very little respiration. Some respiration must occur in order for the seed to live.
What role was played by the tube that contained only glass beads in this experiment?
Cards In This Set
| Front | Back |
|---|---|
| What role was played by KOH in the soybean experiment? | Absorbtion |
| In the germinating seed experiment, what do you call the tube that contains only glass beads? | Thermobarometer |
Why was it important to use the beads only reading as correction factors?
Why is it necessary to correct the readings from the peas with the readings from the beads? The gas changes in the beads were only due to pressure and temperature, and not gas consumption, so the beads act as a control. Germinating peas consumed more oxygen than non-germinating. 8.
What are the three stages of cellular respiration?
Summary: the three stages of Aerobic Respiration Carbohydrates are broken down using all three stages of respiration (glycolysis, citric acid cycle and the electron transport chain).
What are cellular respirations reactants?
Carbon dioxide + Water Glucose (sugar) + Oxygen CO2 + H2O C6H12O6 + 6O2 Cellular respiration or aerobic respiration is a series of chemical reactions which begin with the reactants of sugar in the presence of oxygen to produce carbon dioxide and water as waste products.
What molecule begins cellular respiration?
What Is Being Oxidized & What Is Being Reduced in Cell Respiration? Oxidation and Reduction. In chemical terms, oxidation refers to a chemical process whereby an atom or molecule loses an electron. Cellular Respiration. Cellular respiration is a complex, multi-stage reaction. Harvesting Energy. Chemical bonds contain energy. The Net Chemical Reaction.
Do bacteria undergo cellular respiration?
Aerobic bacteria require oxygen to perform cellular respiration and derive energy to survive. In short, aerobic bacteria grows and multiplies only in the presence of oxygen.
Is cellular respiration the same as cellular metabolism?
Cellular respiration is part of cellular metabolism. Cellular metabolism involves both anabolic and catabolic reactions, while cellular respiration is only catabolic.
Which process in cellular respiration uses oxygen molecules?
Aerobic cellular respiration is the process by which cells use oxygen to help them convert glucose into energy. This type of respiration occurs in three steps: glycolysis; the Krebs cycle; and electron transport phosphorylation.