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How are starches broken down?
Starch is first digested into maltose in the mouth when the salivary enzyme (amylase) acts on it. Starch is not digested in the stomach. carbohydrases convert the remaining starch into glucose, the simplest form of sugar in the small intestine . Maltase also converts maltose to glucose in the small intestine.
Can grams iodine be used before primary stain?
Probably not. The CVI complex formed between the iodine and crystal violet will be trapped in the lipid layer and not the peptidoglycan layer, so you would probably end up over decolorizing. This would cause a lot of false gram negatives. Probably not. The CVI complex formed between the iodine and crystal violet will be trapped in the lipid layer and not the peptidoglycan layer, so you would probably end up over decolorizing. This would cause a lot of false gram negatives.
Why is glucose allowed to pass through a semipermeable membrane and not starch?
Whether molecules are able to pass through the membrane depends on the size of the molecules. Smaller ones can, and larger ones cannot. Glucose can pass through a cell membrane because it is a monomer, which is a smaller molecule than the polymer molecules of starch.
What type of hair will a baby have if the father has straight hair and the mother has curly hair?
Well it will start straight than go curly and it will be red and Blondie colour Well it will start straight than go curly and it will be red and Blondie colour Well it will start straight than go curly and it will be red and Blondie colour
Why can starch molecules not pass through dialysis tubing?
It is a complicated molecule. the starch molecule is to large to be transported through the cell membrane. it therefore has to be broken down if it is to go though the protein channels.
What is the color of potato cell if added with iodine solution?
iodine is an indicator for starch, potatoes are basically starch storage organs for potato plants. that's why they are good to eat, mmm starch!
How much iodine and starch do i have to us to test the vitamin c in citrus fruit?
You have to make a solutuin containing iodine and starch. Go to Google for more information
Why is it that during titration of iodine or triiodine with thiosulphate the starch indicator should not be added until near the end point?
The Starch-Iodide complex is not very soluble in water, so the starch is added near the endpoint of an Iodine titration, when the Iodine concentration is low. This eliminates errors due to the fact that some Iodine may remain adsorbed on the complex and go undetected. so if you add the starch indicator only right near the end point when the solution is a light yellow colour the starch shouldn't complex and go lumpy.
What would be the conclusion after testing a leaf for starch?
Starch is produced by leaves during Photosynthesis, therefore if the leaf has not been exposed to light then it will not contain starch, and so when tested the Iodine will stay Yellow/Brown. Consequently if the leaf has been left in the light Photosynthesis will have taken place and when tested the Iodine will go Blue/Black showing that Starch is present. Hope this helps :)
How can you test starch?
How to test for starch: 1. Add some starch powder to a test tube (or some ground up food that you want to test for starch) 2. Add cold water 3. Boil it to produce a clear solution 4. Once cool, add 3 or 4 drops of iodine solution 5. It'll go dark blue showing that starch is present
How do you measure snow density?
Take a testube, an eye dropper, corn flake, and iodine. Take the cornflake and put it into a 200 militers bottle boil for five minutes, wait for a while then put idiodine to the starch solution, then take few droplets of snow flakes and put it into the iodine that got mixed with starch solution and there you go.
Is iodine molecule an organic molecule?
Iodine is not a compound. It is a pure element. As such it is not organic or inorganic. In general, organic compounds are molecules containing carbon, hydrogen and oxygen, though some contain sulphur, nitorgen etc.
Gelatinisation of starch?
Gelatinization of starch is a process during which inter molecular bonds of starch molecules is broken down due to the presence of heat or water ,making the starch granules swell.
What color does blue litmus paper go in acid?
Blue litmus turns red in the presence of an acid. The opposite is correct in case of a base ie in presence of a base, red litmus turns blue in colour.
Can starch pass through a cell membrane by diffusion?
Within a plant cell, starch is basically stored energy. Starch is composed to cross sugar molecules that are cross linked to form larger chains of sugar molecules that are better for storage. When the need arises, these larger chains are broken down to sugar molecules and are utilized by plant cells to carry out various biological processes. Starch is a large polymeric structure and does not typically pass through cell membranes.
Will iodine ever under go nuclear reaction?
If you use a heavier isotope of iodine, it should be radioactive.
What colour is PH paper when dipped in potassium hydroxide powder?
pH paper would go a deep purple in the presence of KOH (s) because it is a very strong alkali.
