Why was it important to use the beads only reading as correction factors?

Why was it necessary to correct the readings from the peas 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. The beads served as a control variable. Explain the effects of germination versus non-germination on peas seed respiration.

Why is it important to include beads only respirometer?

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.

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Why must you correct the readings of the Respirometers?

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.

Why is there an experimental group with glass beads?

Purpose of glass beads: The glass bead respiration chamber serves as the control for a unit of comparison to the two experimental groups.

Why is it necessary to correct the readings of the respirometer containing seeds with the readings taken from respirometer containing only glass beads?

changes in the environment (e.g. in atmospheric pressure and temperature) affect the rate of respiration, so the readings are corrected to prevent the results from being inaccurate.

What is the effect of germination on pea seed respiration?

The affect of germination on the rate of cell respiration in peas is that in peas that are germinated, the rate of cell respiration is higher because the cells are growing/going through mitosis which requires energy/ATP in order to be carried out which is generated through the process of cellular respiration.

What was the purpose of the beads?

A bead is a small decorative piece that is used for creating necklaces, bracelets and an assortment of decorative gowns/ attire.

Beads: Uses, History, Production.

Natural Material Synthetic Materials
Seeds Plastic
Stone (gemstones & metals)
Wood

What is a corrected difference?

The corrected differences shown in Table 3 are found by subtracting the difference of the bead’s initial reading and reading at the moment from the difference between the initial amount and the reading of the moment of the peas. This is the amount of pressure just lost only due to cellular respiration.

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What is the purpose of using just glass beads in a vial with no peas?

The beads carried out no cellular respiration. The non-germinating peas require less energy than the germinating peas so the dry peas carry out a slower process of cellular respiration. This in turn caused less oxygen to be consumed in the vials with non-germinating peas than the vials with germinating peas.

What would happen if the respirometer were not tightly sealed?

Predict what would happen if the respirometer were not tightly sealed. The KOH will not be able to combine with CO2 due to the loss of pressure within the vial. Water will enter the vial, and it will no longer be possible to measure changes in gas pressure.

Why are polyester fluffs used in the experiment?

Why are Polyester fluffs used in this experiment? will not soak up KOH and can be used as a barrier between KOH and seeds. Which side of the red respirometer marker do you measure from?

Why did the water level in the pipette change over time in the cellular respiration experiment with crickets and peas?

While the peas underwent cellular respiration, they consumed oxygen and released carbon dioxide. The carbon dioxide reacted with the KOH resulting in a decrease in the volume of gas in the pipette and the vial. Because the pipette tip was exposed to the water bath, water moved into the pipette.

How did the respirometer with glass beads act as a control?

During respiration, oxygen will be consumed and its volume will be reduced to a solid. … The respirometer with just the glass beads served as a control, allowing changes in volume due to changes in atmospheric pressure and/or temperature.

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Why are glass beads added to the heating vessel?

One purpose of the glass beads is to disrupt the flow of vapour by convection to improve mixing and attainment of thermal equilibrium at each level of the fractionating column. This creates a steeper, smoother temperature gradient.

Why is it important to equilibrate your beans to the correct experimental temperature?

why is it important to equilibrate your beans to the correct experimental temperature? minimizes volume changes due to change in air temp. which sugar works best for proofing yeast?