Cell structure and microscopy GapFill

All living organisms, no matter how big or small, are made of cells carbohydrates organs amino acids . Animals and plants have different kinds of cells, although they share many features, including both having a nucleus and a cell membrane wall channel organ for controlling what enters and leaves the cell.

Cells that contain a nucleus are known as eukaryotes fungi prokaryotes viruses . Other types of cells, that do not contain a nucleus, are known as eukaryotes plasmids ribosomes prokaryotes , and these are generally much smaller on average. An example of this type of cell is a bacterium. The genetic material in bacterial cells takes the form of chromosomal DNA mitochondria chloroplasts nuclear DNA or plasmid DNA.

Some structures are present in plant cells that are not found in animal cells. These include a mitochondrion nucleus cell membrane cell wall , which provides strength to the cells, and mitochondria chloroplasts ribosomes nucleosomes , which are the site of photosynthesis in plant cells. In order to supply energy, plant and animal cells both contain a number of cell membranes chloroplasts vacuoles mitochondria . They can provide energy for making proteins, which takes place on ribosomes nuclei chloroplasts cell membranes .

The cells inside an organism perform many different roles. They must become specialised larger smaller identical in order to perform these roles. Examples include phloem nerve sperm xylem cells, which are the male reproductive cells, and ciliated epithelial cells, which have large nuclei small vacuoles thick cell walls hair-like extensions to waft substances along.

In order to view cells, either a proton an electron an X-ray a microwave or a light colorimeter microscope telescope instrument can be used. Both are capable of magnifying cells, but the first type is capable of much higher magnification and colour accuracy resolution specialisation , so finer details can be observed.