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Explain how increased blood flow to an athletes muscles helps them to run

"Explain" - so must give reasons why something is happening - Increased blood flow - what does this mean? Means more blood reaches the muscles -What does the blood carry (that the muscles need)? Ca...
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Answered by Emily G. • Biology tutor
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How are plant and animal cells different?

It's easy think about how they are different if you think about their different functions and environments. Let's think about the difference between the walls. Animal cells have a thin cell membrane whereas ...
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Answered by Anna H. • Biology tutor
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What are the main components of animal cells and plant cells?

Animal cells have a cell membrane, which surrounds the outside of the cell to maintain its shape and to keep the cell components inside. They also have a nucleus, which contains all of the genetic material o...
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Answered by Alina A. • Biology tutor
4885 Views

state 3 difference between DNA replication and transcription of DNA

DNA to DNA vs DNA to RNA cell division vs gene expression origin of replication vs promoter sequence
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Answered by Shobiga K. • Biology tutor
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Explain, in terms of the movement of ions, the shape of a typical action potential.

First, draw the graph of time against voltage for a typical action potential and label with points 1-8 (see whiteboard). 1. at rest, the membrane is polarised at -60mv (this is the potential inside the cell ...
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Answered by Rhiannon O. • Biology tutor
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