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What are the main differences between prokaryotes and eukaryotes?

Scientists have categoried all life on Earth into three 'domains'. These are: eukarya, bacteria and archaea. The domains bacteria and archaea both contain prokaroytes. Because these groups have experienced d...
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Answered by Aine F. • Biology tutor
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When plant cells are placed in salt solution their appearance is different to when they are placed in distilled water. Explain these changes.

When the plant cells are placed in the salt solution, there is a higher concentration of water molecules in the cell and a lower concentration of water in the salt solution and thus a concentration gradient ...
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Energy is obtained from both aerobic and anaerobic respiration during exercise. Give three differences between aerobic and anaerobic respiration.

aerobic respiration uses oxygen for eaxaplme a relaxed human will be inhaling oxygen and their bodies using it to break down glucose in their cells. glucose + oxygen = carbon dioxide + water However anaerobi...
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Answered by Andrea G. • Biology tutor
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What is the difference between mitosis and meiosis?

Mitosis and meiosis are both ways that cell division can happen in humans. Mitosis produces two daughter cells that are genetically identical with the same number of chromosomes (diploid). Whereas, meiosis p...
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Answered by Aisha A. • Biology tutor
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Explain how CO2 can cross a cells plasma membrane

Normally we think of CO2 as a gas because it is (at least when its in the atmosphere it is). However, it is a very different story inside of cells. CO2 is produced as a result of respiration inside mitochond...
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Answered by Eoin B. • Biology tutor
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