Answer:
Starch and water will be the best negative control
Explanation:
Negative control sample is a sample that will not give change in an experiment.
Starch and water will be the best negative control. This is because, starch is broken down by HCl to monosaccharides in the Benedict test which is the test for reducing sugar
Distilled water remain a negative control because it remain blue which means it does not reduce sugar with starch solution.
Water plus us a negative control for Buiret test (protein) and Benedict(reducing sugar) because it does not indicate the presence of protein and reducing sugar.
Answer:
starch molecule is too big to fit in the cell, and when starch breaks it turns into glucose, which your body can burn it for energy.
Explanation:
Answer:
I believe that the protists were the first organisms on earth. And the other 5 kingdoms then came from the protists.
I think that's it! :)
Answer:
Nitrogen oxide air pollution has the following impacts:
- Nitrogen oxides are respiratory irritant.
- causes photochemical smog
- Acts as ozone precursor.
Explanation:
- Oxides of nitrogen, when inhaled causes severe damage to the lungs and destroy the lung tissues causing severe respiratory problems.
- Presence of oxides of nitrogen in atmosphere creates a brown haze over the sky and results in photochemical smog.
- oxides of Nitrogen undergo decomposition in presence of sunlight resulting in formation of ozone. thus, it is a ozone precurzor.
- Ozone is very harmful when present at ground level.
