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I don't understand how muscle contraction starts, can you explain it?

So, if we looks at the sarcomere of the muscle (which is from one Z line to another) you'll see a thicker looking strand/filament called myosin and thinner strands called actin. Myosin has bulbous structu...

MK
Answered by Monica K. Biology tutor
3214 Views

Name two organelles that are present in a plant cell that are not present in an animal cell and state their functions?

There are many organelles you could choose from so long as it is only present in plant cells and you can explain it's function it is appropriate. Examples include:Cell wall - provides structural support m...

TB
Answered by Thomas B. Biology tutor
4295 Views

Imagine you are a GP and a 15 year old female comes to you asking for the contraceptive pill to use as contraception. She does not want her parents to know about this. Describe what issues this raises and how you could go about addressing this?

This style of question is common at interview. Crucially it is split into two parts and it requires both parts answering in full. Although these might seem like scary or perhaps even embarrassing topics t...

TB
4793 Views

What is the difference between chromatin and a chromosome?

The difference between chromatin and chromosome can be highlighted when using the analogy of a wool. Chromatin is the unwound wool pile of wool where as chromosomes are the tightly wound and condensed woo...

FB
Answered by Francesca B. Biology tutor
6237 Views

I can never think of anything to write during French Creative writing exams, what can I do?

Always remember that although the exam title has the word 'Creative' in it, it is still an exam and the examinator wants you to show off what you know. Preparation and simplicity is the key. Depending on ...

OL
Answered by Olivia L. French tutor
1946 Views

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