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Befor you read
What is a protein? Why are they important? How many cells are in my body? How many proteins? Why do I feel pain when I fall down? If any of these questions is bothering you, read on.
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Why proteins?
Proteins are very important. They help all living things function, that includes bacteria, maple trees, ants, cow and humans. Our bodys have about a trillion cells! Each cell has a specific job. Each of these cells has thousands of different proteins. Each one acts as a tiny machine that runs the cell.
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Ouchy!
When you are injured or feel pain, it's due to nerve networks. Nerve networks sent the pain signal from your injury to your brain instantly. Nerve networks are made up of individual cells arranged end-to-end to transmit pain signals. "Receptor" proteins are on the end of the recieving part of a cell. These proteins are responsible for picking up the signal and passing it along to the next cell. These nerve cells aren't round like most other cells. Instead they've grown branches to help receive and transmit signals. "Structural proteins" are responsible for the cell's extended branches, and hold them in place.
Size?
Proteins are extreamly tiny. Even with the most powerful microscope you still would have a hard time seeing them.
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This is one of my favorite images
This is my good friend Hal. I took this picture on his birthday. I think he likes to be in pictures. |
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