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How are nerve cells adapted to their function?

To answer this question we first need to understand what the function of a nerve cell, or neurone, is. Neurons need to be able to rapidly transmit electrical impulses along their length. They also need to ex...
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Answered by Christian H. • Biology tutor
133725 Views

What is co-transport and why do I sometimes hear it being called active transport?

Example: absorption of sodium ions (Na+) and glucose by cells lining the ileum (a part of the small intestine) 1. Na+ actively transported into the blood from epithelial cells, by the sodium-potassium pump ....
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Answered by Olivia L. • Biology tutor
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What is the role of the rough endoplasmic reticulum and the Golgi apparatus in protein transport within cells?

Firstly, during protein synthesis, the DNA is transcribed into mRNA in the nucleus, which then can move out of the nucleus into the cytoplasm. This is where translation occurs, where the mRNA is read and tra...
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Answered by Mary-Jane G. • Biology tutor
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'It is a tragedy that the journey is often more fulfilling than the arrival.' With reference to your wider reading, explore the presentation of illusionary love in Rapture and The Great Gatsby.

Within the two texts, Duffy and Fitzgerald criticise the values of their respective societies by presenting protagonists who, through the contemporary societies of the writing; will have to journey in order ...
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Answered by Florence T. • English tutor
2594 Views

Find the value of dy/dx at the point where x = 2 on the curve with equation y = x^ 2 √(5x – 1).

Here we must use the product rule to differeniate because x appears in both terms of the equation, therefore both parts must be differentiated. So we will set u= x 2 and v= (5x-1)^(1/2) written like this mak...
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Answered by Lucy T. • Maths tutor
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