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Biology
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immunisations - describe two disadvantages of vaccinations ?

Although vaccinations are very beneficial they do carry risk factors - they can cause mild swelling, soreness, a mild form of the disease (they are being vaccinated for), and rare major harmful reactions....

AR
Answered by Ameenah R. Biology tutor
2875 Views

How can I understand enzyme-substrate function?

The best way to understand the enzyme-substrate mechanism is to imagine a baseball glove, and a baseball (photographed on the screen). The baseball glove is designed to fit the baseball. Therefore, the ba...

Answered by Biology tutor
2503 Views

Describe the process of synaptic transmission

In order to move and process sensory information electrical signals are sent around the body via specialised cells called neurones. Signals are transmitted between neurones across structures called

Answered by Biology tutor
2256 Views

What are embryonic stem cells? Why are stem cells useful to doctors + why this discovery may make fewer people object to their use

Embryonic stem cells are unspecialised or undifferentiated. This means they can divide to form any type of cell. Embryonic stem cells could be used in medicine to replace damaged cells. This could treat d...

EJ
2730 Views

Explain how a very high temperature can stop an enzyme from working.

A very high temperature makes the enzyme’s molecules vibrate more. This vibration breaks some of the hydrogen and/ or ionic bonds that hold the enzyme in shape. The active site changes shape and the enzym...

VG
Answered by Veronica G. Biology tutor
5024 Views

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