Top answers

Describe the role of a neuron

A neuron, or a nerve cell takes up, processes and transmits information using electrical and chemical signals and is a basic component of the nervous system. Information is gathered through a process known a...
MJ
Answered by Marie J. • Biology tutor
3765 Views

Describe the process of oxidative phosphorylation and explain the role of oxygen as the final electron acceptor

NADH and FADH are oxidised to release electrons. The electrons are passed through a series of specialised proteins complexes embedded into the inner membrane. As the electrons are transferred to the next com...
TR
Answered by Tamsin R. • Biology tutor
3999 Views

Describe the similarities and differences between simple and facilitated diffusion?

Simple diffusion consists of molecules moving from an area of high concentration to low concentration, down their concentration gradient. Facilitated diffusion also involves molecules travelling from and are...
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Answered by Ali B. • Biology tutor
6772 Views

What is the role and structure of enzymes in the human body?

The role of enzymes are to act as a catalyst to speed up the rate of chemical reactions within the human body. They do this by binding to a molecule or substrate and breaking it up or by combining two molecu...
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Answered by Clement H. • Biology tutor
3450 Views

How do I recognise the different phases of mitosis by simply looking at an image (e.g. electron micrograph)?

When coming across a question like that, I would recommend to always first recall the different stages of mitosis in their correct order, and to remember each phase along with a key-word that sums it up. For...
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