B3 - Living and Growing
- Created by: Caitlin Ward
- Created on: 23-06-13 18:45
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- B3 - Living and Growing
- Cells
- Animal cell structures are much simpler than plant cells. They contain 5 structures: Nucleus, Cell Membrane, Ribosome, Cytoplasm and Mitochondria.
- Plant cell structures have all the same structures of a animal cell and also a few more: Chloroplasts, Cell Wall, Vacuole.
- Bacterial cells are much different to the other ones. They are much smaller and simpler.
- They do not have chloroplasts or mitochondria. Bacterial cells do not have a nucleus and instead they have a single strand of DNA that floats in the cytoplasm.
- DNA
- DNA molecules contain a genetic code that determines which proteins are built.
- Three base pairs make up an amino acid. This amino acid makes up a protein which is the gene.
- Each of these proteins codes for something different.
- Proteins are made up of chains of amino acids.
- These proteins are all different.
- Proteins are made up of chains of amino acids.
- These proteins are all different.
- Three base pairs make up an amino acid. This amino acid makes up a protein which is the gene.
- Chromosones are long molecules of DNA
- There are 4 base pairs, which will code for the proteins. These are A-T and C-G.
- A nucleotide contains a molecule which is called a base.
- There are 4 base pairs, which will code for the proteins. These are A-T and C-G.
- Watson and Crick discovered DNA in 1953.
- DNA molecules contain a genetic code that determines which proteins are built.
- Cells
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