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What is the difference between hydrophillic and hydrophobic molecules?

Charged or polar molecules such as salts, sugars and amino acids dissolve readily in water and so are called hydrophilic ("water loving"). Uncharged or non-polar molecules such as lipids do not dis...
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Answered by Asya P. • Biology tutor
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What is the difference between Aerobic and Anaerobic respiration?

Respiration is the break down of molecules in living cells to release energy. Most commonly glucose (a sugar molecule) is broken down to release energy. Aerobic respiration occurs in animal cells and plant c...
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Answered by Freya C. • Biology tutor
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How does DNA replication take place?

Imagine DNA to be two strings that are twisted together. In order to separate them, particular enzymes should be used. Firstly, helicase unwinds and unzips the helix at place called replication fork. Moreove...
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Answered by Marek W. • Biology tutor
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Explain how the cardiac cycle pumps blood around the body

The heart is made up of four chambers; the left atria, left ventricle, right atria and the right ventricle. The cardiac cycle is made up of repeating phases of systole (contraction) and diastole (relaxation)...
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Answered by Katie A. • Biology tutor
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Explain the process on mitosis

Mitosis is the process of cell division - in which one cell divides to form two cells that are identical to it and then also to each other. These new cells that are formed are called sister cells. The proces...
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Answered by Mahreen B. • Biology tutor
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