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Biology
GCSE

What happens when your hand touches a flame?

You will will automatically move your hand away in a process known as the relex arc. Your natural 'reflex'.thermal sensors in your fingers will sense the heat and send electrical impulses along your senso...

Answered by Molly O. Biology tutor
15888 Views

What process is known as cell 'eating'and give one example of that process relating to the human immune system?

Cells need to eat and drink, just like me and you. The process where cells ingest other cells or foreign material is called PHAGOCYTOSIS. The process itself is very complicated and you don’t need to know ...

Answered by Marko T. Biology tutor
3847 Views

What is the difference between eukaryotic cells and prokaryotic cells?

The main difference between eukaryotes and prokaryotes is that eukaryotic cells contain membrane-bound organelles (this includes a nucleus). Eukaryotes can be a single-celled or multi-celled organisms, su...

Answered by Sarah L. Biology tutor
2863 Views

Explain what phototropism is and why plants might benefit from positive phototropism.

Phototropism is a growth response to a light stimulus.Positive phototropism causes the stems of plants to grow towards a light source causing the leaves of the plant to be pointing towards the lgth source...

Answered by Rachel S. Biology tutor
26425 Views

Why does the rate of an enzyme reaction not just always increase with temperature? Why does it fall after a point?

Enzymes have an area on them known as the ACTIVE SITE. This active site is shaped to fit the substrate that will bind to it -complementary fit. Eventually, the bonds in the active site of the enzymes are ...

Answered by Jacob P. Biology tutor
2103 Views

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