Your question: What was the purpose of adding glass beads to some tubes in the experiment?

Why were glass beads added to this experiment?

In the experiment water will moved toward the region of lower pressure. 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.

Why is it important to add the beads to the Nongerminating seeds?

The purpose of the beads in the respirometer with non-germinating seeds is to maintain the same volume. In the respirometer without any seeds the beads act as seeds for a control group.

What role was played by the tube that contained only glass beads in this experiment?

Cards In This Set

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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

What was the purpose of adding KOH to the cotton balls in the Respirometers?

Oxygen is being consumed and carbon dioxide is diffusing out of the cells and released. The respirometer must try to measure both gases at the same time. In order to accomplish this, Potassium Hydroxide (KOH) is added to the device. KOH absorbs carbon dioxide and forms Potassium Carbonate and water.

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What is the purpose of KOH in this experiment?

9. What is the purpose of KOH in this experiment? KOH removes carbon dioxide formed during cellular respiration.

What is the difference between germinating and Nongerminating seeds?

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.

Why are polyester fluffs used in this 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 is it necessary to correct the readings from the peas with the readings 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.