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What are the components of the cells, and what do these components do?
So, humans and plants are made up of many cells, and these cells and what are in these cells play a key role in the survival of the organism.Humans and plants share many of the components, but overall have a...
ZF
Answered by
zeina f.
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Biology tutor
8648 Views
Name and describe each of the tests used to test for the presence of :starch, lipids and proteins.
Starch- add iodine to the sample. A positive result will give a blue/black solution.Lipids- Add ethanol to the sample and shake well then add water. A positive result indicating the presence of a lipid will ...
AT
Answered by
Annabel T.
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Biology tutor
15680 Views
Explain how the presence of starch can be detected in plants.
Plants store glucose produced by photosynthesis in the form of starch. To test the presence of starch in plants, first heat a leaf in boiling water for 30 seconds followed by boiling it in ethanol for a few ...
TD
Answered by
Tutor509248 D.
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Biology tutor
7556 Views
Describe how pregnancy tests sticks work.
Pregnant women produce a hormone called HCG, found in their urine. Monoclonal antibodies are found at the end of pregnancy test sticks. When a pregnant woman urinates on the stick, the monoclonal antibodies(...
TD
Answered by
Tutor509248 D.
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Biology tutor
4664 Views
I have prepared a structured Question with 3 sections a-c, see below both Q & A samples
(a) Describe Pseudomonas aeruginosa and its implications in disease. Pseudomonas aeruginosa is a common type of gram-negative bacteria usually found in soil and water. It rarely causes problems in healthy pe...
IC
Answered by
Ioanna C.
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Biology tutor
1230 Views
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