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What is a cytoskeleton? What are its main components in animal cells?

A cytoskeleton is a structure that acts as a support for the cell. It also maintains the cell shape, holds and moves organelles. It is made from a fibre network dispered in the cell cytoplasm, attached in th...
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Answered by Bethany H. • Biology tutor
11390 Views

What is the electronic configuration of Chlorine and of a chloride ion and explain why Chlorine is 'happiest' as a chloride ion.

Cl - 1s22s22p63s23p5 Cl- - 1s22s22p63s23p6 The 3p orbital is slightly unstable because of the single unpaired electron which is at a higher energy and wants to pair up, the 3p orbital is more stable when the...
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Answered by Molly S. • Chemistry tutor
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How does the body bring blood glucose concentration from a high level back to normal?

When blood glucose concentration rises above its optimum level of 90mg/100cm 3 , it is detected by β-cells in the Islets of Langerhans in the pancreas. These β-cells release insulin into the bloodstream. Ins...
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Answered by Emily H. • Biology tutor
6121 Views

What do I need to do to be more concise?

English tutors seem to like the word concise a lot. It’s a direction that requires you to say more with less, which can be frustrating, and like most things with English, there is no clear-cut way to go abou...
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5387 Views

What can pronouns tell us about the meanings and representations in a text?

Pronouns are a useful starting point when structuring an essay, because they provide an immediate focus on the attitudes within a text. Though they may appear insignificant, pronouns provide important clues ...
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