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Using chemical reagents in test tubes, distinguish between isomers: A CH3CO(CH2)2CHOH, B CH3CH(OH)(CH2)2CHO and C C(CH3)2OHCOCH3

Answer: *First draw out each compounds' structural formula (an image of the "shape and arrangement of the atoms in space"), then identify all functional groups in each compound. *Add Tollens' reage...
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Answered by Conor M. • Chemistry tutor
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Which best describes the function of a cell membrane? (a) It keeps the cell in shape. (b) It controls the substances entering and leaving the cell. (c) It controls the substances entering the cell. (d) It supports the cell structures.

This is an example of how you can get around not knowing an answer in a multiple choice question by using some basic knowledge and powers of deduction. (a) "it keeps the cell in shape" Think about ...
RW
Answered by Rebecca W. • Biology tutor
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Jill takes out a loan of £6000 to get a car. The loan has a compound interest of 3% and she takes it out for 4 years. a) How much interest has Jill accrued after 2 years? b) What is the total amount to be paid after 4 years?

There are 3 rules to answering Maths questions: Am I actually answering the question? Have I answered the whole question? (the question above has two parts) UNITS! With this question, it's important to reali...
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Answered by Rebecca W. • Maths tutor
5305 Views

What is active transport the movement of and what does it need to occur? Give some examples of where is might occur in the human body.

Active transport is another method by which molecules are transported into and out of the body. It is the movment of solutes that have been dissolved in water into and out of the cell against their concentra...
MK
Answered by Martha K. • Biology tutor
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What can happen to a red blood cell if placed into a solution that is more dilute than its own cell contents?

The red blood cell is an animal cell therefore has no cell wall and will change its shape and seize dependent on the concentrations of solutions around it. When placed in a more dilture solution a red blood ...
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Answered by Martha K. • Biology tutor
10003 Views