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.
Why is it necessary to correct the readings of respirometers with peas with the readings taken from respirometers with 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.
Why must you correct the readings of the respirometer?
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.
Why is it important to react the carbon dioxide with potassium hydroxide 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.
What is the purpose of using the glass beads as a control?
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 do germinating peas consume more oxygen?
Since the germinating peas are germinating or sprouting, they require a more extensive amount of energy or ATP. This allows them to have high oxygen consumption rates or respiration rates in this experiment.Mar 26, 2014
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 is the purpose of potassium hydroxide in the aerobic respiration demonstration group of answer choices?
KOH reacts with carbon dioxide to produce a solid, potassium carbonate (K2 CO3) . This neutralizes the carbon dioxide and excludes it from affecting the respirometer. Thus, in this experiment, the only change in gas measured will be the decrease in oxygen with cellular respiration.Feb 16, 2022
What is the purpose of potassium hydroxide in the aerobic respiration demonstration?
A small volume of potassium hydroxide solution (KOH) in the respirometer will remove the carbon dioxide as it is being generated during respiration. The KOH absorbs atmospheric CO2, producing a potassium carbonate precipitate.
What is the role of potassium hydroxide in this experiment?
Potassium hydroxide is used in the experiment for the absorption of CO2 from the plant released during respiration. When KOH absorbs CO2, it creates a vacuum in the flask. The air present in the bent glass tube moves into the conical flask. This pulls the water in the bent tube further up.
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 MaterialSynthetic MaterialsSeedsPlasticStone (gemstones & metals)Wood4 more rows
What is the role of the beads in the experimental design?
These red beads represent all the things that can go wrong with a process including a mechanical breakdown, a bad design, a poor procedure, an untrained worker, etc. The experiment begins with six “workers.” Their job is to make 100% white beads. The workers are trained in how to use the paddle to scoop out the beads.
What is the purpose of the cellular respiration lab?
When carbon dioxide reacts with water, a weak acid (carbonic acid) is formed (see chemical reaction below). The more carbon dioxide you breathe into the BTB solution, the faster it will change color to yellow. The purpose of this lab activity is to analyze the effect of exercise on cellular respiration.