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Why do cells have receptors that allow viruses to invade?

Rather than cells having receptors specific to viruses, cells have receptors specific to molecules it needs to acquire from outside the cell, such as glucose (needed for respiration). It is the viruses who a...
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Answered by Emily R. • Biology tutor
5004 Views

What does anaerobic mean?

Anaerobic conditios are those in which oxigen is not present, or present in very low quantities. Processes which are anaerobic tend to be found in stationary waters, and inside our muscles for example.
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Answered by Gonzalo G. • Biology tutor
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What's the difference between a eukaryotic and prokaryotic cell?

Animal and plant cells are types of eukaryotic cells and bacteria are a type of prokaryotic cell. Eukaryotic cells contain their DNA in a nucleus and have membrane bound organelles such as the smooth and rou...
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Answered by Remi C. • Biology tutor
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Write down the difference between aerobic respiration and anaerobic respiration in humans, and explain the process and elimination of the 'oxygen debt' . (6 marks)

Aerobic respiration requires oxygen, anaerobic respiration does not. In aerobic respiration glucose and oxygen react together in cells to produce carbon dioxide and water and energy. In particular this occur...
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Answered by Jas M. • Biology tutor
13809 Views

What is the difference between non competitive and competitive inhibitors?

Competative inhibitors bind with the enzyme at the active site, blocking the substrate from binding and therefor preventing the substrate from binding and forming enzyme substrate complexes. Therefor if you ...
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Answered by Anja K. • Biology tutor
7390 Views