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How and why are sperm cells specialised ?

Sperm cells are specialised because they have a specific function in the body- to fertilise the female gamete (egg). Therefore to carry out its job, it has special features typical body cells do not. The nuc...
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Answered by Antonia S. • Biology tutor
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What is the difference between a competitive inhibitor and a non-competitive inhibitor?

Both inhibitors decrease the rate of reaction for an enzyme controlled reaction. A competitive inhibitor has a similar shape to the substrate, therefore, its shape is complementary to the active site of the ...
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Answered by Daisy C. • Biology tutor
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Describe the role of the thylakoid membrane.

The thylakoid membrane is found within the chloroplast. The photosystems (I and II) are embedded within the membrane itself. It is the site of photophosphorylation and the electron transport chain (ETC), whi...
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Answered by Maria F. • Biology tutor
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What are the similarities/differences between neuromuscular junctions and cholinergic synapses?

There are many similarities between these two structures, the main differences are: Neuromuscular junction (NMJ) is between a neurone and a muscle. A synapse is neurone-neurone.Neuromuscular junctions are on...
Answered by • Biology tutor
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How can we isolate DNA from cells?

DNA isolation is important for experimental analysis and drug discovery across many biological disciplines. Firstly a cell culture must be homogenised to break down the cells into a uniform liquid, making it...
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Answered by George C. • Biology tutor
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