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How could you quantify the amount of glucose in a range of commercially available glucose drinks?
colorimetric analysis
What are the differences between starch and glucose?
glucose is a type of sugar, and it is combined with starch. sugar is a category, because it could be fructose, glucose, etc.
Which test or observation can be used to show that a sample of glucose is pure?
You could test its melting point, since pure glucose has a known melting point of 146oC.
Which substance in plants and animals could be examined for radioactivity to test his hypothesis?
The substance in plants and animals that could be examine for radioactivity to test its hypothesis in the cell of the plant or animal.
Is gas considered a chemical substance?
It might, or it could just be vaporization of the substance (physical change).
Could food colouring added to the substance affect the density calculation of the substance?
no it could not
Does leaves help the plants to make food?
Yes, leaves take in sunlight in a process called photosynthesis. On the leaves, a substance called glucose is made and this substance helps the plant grow. So really, leaves could be described as 'chemical factories'.
What does GLUCOSE mean in a blood test?
It is the glucose level (the amount of it) in your blood. Added 2/17/11: Glucose, which can also be listed as GLU on a lab report, is a chemical name for SUGAR. The normal level of glucose / sugar in your blood should stay between 70 - 110. Blood glucose levels that stay elevated above 125 over a period of time could mean that you have a disease called diabetes.
Could glucose get separated from a magnet?
Glucose is not a metal and can not be separated using a magnet.
How does Lugol's solution work as an indicator?
An indicator is a substance that changes colour in the presence of another substance. Let say inside the beaker are substances of both glucose and starch. The glucose and starch are of same colour. By injecting the lugol's solution into the beaker, the lugol's solution changes colour in the area of where starch is, while no colour changes in the presence of glucose. Thus, by using the Lugol's solution which only acts as indicator for starch and not glucose, we could tell part which area floats around with glucose and starch substances. Lugol's solution works as an indicator because it will stain starches due to iodine's interaction with the coil structure of the polysaccharide.
What color tube is drawn for glucose?
It could be either red top (to clot it) or Grey top (sodium fluoride or potassium oxalate added) which prevents RBC's from metabolising the glucose in the blood. There is also another one to separate the serum but I forgot the color. It might be "tiger top" or speckled.
How could you quantify the amount of glucose in a range of commercially available glucose drinks?
colorimetric analysis
How do you help a substance dissolve?
You could stir the substance
What is the simple sugar that the body uses for quick energy?
It could be sugar, or a toffee.
What are the difference between glucose starch and sugar?
glucose is a type of sugar, and it is combined with starch. sugar is a category, because it could be fructose, glucose, etc.
An unstained wet mount preparation of epidermal cells shows few details Which substance could be added to the slides to make the details more visible?
1. methylene blue
Why could glucose could pass through the visking tubing?
Because it has starch in it.
