Why is it necessary to correct the reading from the peas with the reading from the beads?
Why is it necessary to correct the readings from the peas with the readings from the beads? This is necessary to show the actual rate at which cellular respiration occurs in peas.
How do you calculate cellular respiration?
Measuring the rate of cellular respiration can either rely on measuring the amount of oxygen taken in, or the amount of carbon dioxide being released. Respirometers are devices that measure these types of gas volume changes, and therefore provide information about the rate of cellular respiration.
What is the independent variable for the cellular respiration experiment?
Independent variables: temperature of water bath (Room or 10° C)
Why was there a difference in rate of respiration between germinating and non-germinating peas at room temperature?
It requires a lot of energy to break the seed coat and as it continues to grow this energy need increases. Respiration is required to access this energy so as the seed germinates its respiration rates increase. Non-germinating seeds, however, are dormant and use very little respiration.
Why is it necessary to correct the reading of the respirometers containing seeds with the reading taken from respirometers containing only glass beads?
Why is it necessary to correct the readings of the respirometers containing seeds with the readings tak… The glass beads will not respirate, making them the constant for the experiment so the data can be referred back to them.
What was the effect of temperature on pea respiration?
The effect of temperature on the rate of cell respiration in the peas is that the higher the temperature, the higher the rate of cell respiration because the cool water causes the enzymes to slow down, causing the reactions of cellular respiration to slow down, and therefore the rate of respiration to be slower.
What was the negative control in the cellular respiration lab?
The control for this experiment was the ungerminated seeds. This is a negative control.
What variables affect cellular respiration?
The eight environmental factors effecting the rate of respiration are: (1) Oxygen Content of the Atmosphere (2) Effect of Temperature (3) Effect of Light (4) Effect of Water Contents (5) Effect of Respirable Material (6) Effect of Carbon Dioxide Concentration (7) Protoplasmic Conditions and (8) Other Factors.
How does size affect cellular respiration?
Seed size is a factor that affects the germination process and the rate of respiration. In general, our data exhibited that as seed size increased, the rate of increase in carbon dioxide in the chamber increased thus exhibiting that respiration occurred in higher volume and germination was favorably affected.
How does temperature affect the rate of respiration in germinating seeds?
Additionally, that at higher temperatures, the rate of cellular respiration in the seeds will increase.
What is the purpose of the respirometers containing 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.
Why must you correct the readings of the respirometers containing seeds?
How does pH affect the rate of respiration?
pH affects cellular respiration. Enzymes play a vital role in cellular respiration to catalyse the reaction. Enzymes are said to have an optimum pH and at higher pH levels, the enzymes are denatured and are no longer able to catalyse the reaction. Explore more: Cellular Respiration.