thermobarometer
this should help:Respiration slowed down when the temperature was reduced, and respiration increased when the temperature increased. The germinating pea seeds consumed the most oxygen. The vials containing the dry seeds and glass beads had the same result. When the germinating seed is cooled down however, the rate of oxygen consumption is reduced drastically because all of the cellular processes are slowed down from the cooler surroundings. The germinating seeds consumed almost no oxygen throughout the experiment in the 10-degree C water bath. In the room temperature water bath, the glass beads, and the dry pea seeds and glass beads consumed the least amount of oxygen (see chart 1). Which means that the germinating seeds would slow down their respiration rates because of the colder temperature. They consumed almost three times as much oxygen as the glass beads alone, and the glass beads and dry pea seeds.
Glass beads were used in the cellular respiration experiment as a control to ensure that any changes observed were due to the presence of living organisms (yeast) and not simply the physical presence of an object in the test tube. The glass beads did not respire, so any changes in gas production or respiration rate observed in the experimental group could be attributed to the yeast cells metabolizing the sugar.
One way to test for glass beads is to check their transparency and surface texture. Glass beads are usually transparent and have a smooth surface. You can also perform a hardness test and a specific gravity test to confirm if the beads are made of glass.
There are many ways to tell glass from semi precious stone beads. EHow has published an article on how to tell glass from semi precious stone beads, which describes how to inspect the sound, texture, bead, and cut of the specimen.
Glass beads are used in a fractionating column to provide surface area for vapor-liquid contact and enhance the separation of components in a mixture. The beads help in achieving more efficient distillation by increasing the number of theoretical plates, which improves the separation efficiency of the column.
this should help:Respiration slowed down when the temperature was reduced, and respiration increased when the temperature increased. The germinating pea seeds consumed the most oxygen. The vials containing the dry seeds and glass beads had the same result. When the germinating seed is cooled down however, the rate of oxygen consumption is reduced drastically because all of the cellular processes are slowed down from the cooler surroundings. The germinating seeds consumed almost no oxygen throughout the experiment in the 10-degree C water bath. In the room temperature water bath, the glass beads, and the dry pea seeds and glass beads consumed the least amount of oxygen (see chart 1). Which means that the germinating seeds would slow down their respiration rates because of the colder temperature. They consumed almost three times as much oxygen as the glass beads alone, and the glass beads and dry pea seeds.
Glass
Acid is used to clean glass beads to remove any surface contaminants or residues. It helps to break down and dissolve these substances, leaving the glass beads clean and ready to be used in various applications such as scientific experiments or jewelry making. Additionally, acid cleaning ensures that the glass beads are free from impurities that could affect the final product or experiment.
Glass beads were used in the cellular respiration experiment as a control to ensure that any changes observed were due to the presence of living organisms (yeast) and not simply the physical presence of an object in the test tube. The glass beads did not respire, so any changes in gas production or respiration rate observed in the experimental group could be attributed to the yeast cells metabolizing the sugar.
Cindy Jenkins has written: 'Beads of glass' -- subject(s): Glass artists, Glass beads, Glass blowing and working, Technique 'Making glass beads' -- subject(s): Glass beads, Glass blowing and working
Lampwork glass beads are often used to make jewelry. Some examples of this jewelry can be found online at Lampwork-Beads-Glass, Zacoo, and Lima Beads.
The most sustainable beads are pearl beads. They are much stronger and last much longer than glass beads. This is one of the reasons they cost more than glass beads.
Louise Mehaffey has written: 'Glass beads' -- subject(s): Glass beads, Glass craft, Glass blowing and working
One way to test for glass beads is to check their transparency and surface texture. Glass beads are usually transparent and have a smooth surface. You can also perform a hardness test and a specific gravity test to confirm if the beads are made of glass.
YES! Because when you heat the mixture of water and glass beads up at boiling temperature, the water will evaporate and leave the glass beads behind. =-)
Crystal beads are made from leaded glass, giving them a higher refractive index and more sparkle than regular glass beads. Glass beads are made from silica, soda, and lime, and are generally less expensive than crystal beads. Crystal beads are often used for high-end jewelry designs due to their superior quality and appearance.
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