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Cell Development

In: Science

Submitted By ladykerryx
Words 3867
Pages 16
Plasma membrane:
The plasma membrane controls how substances move in and out of the cell. The cell membrane contains phospholipids, proteins and carbohydrates. These are arranged in a fluid mosaic structure.

Cytoplasm:
The cytoplasm is everything that is outside the nucleus and inside of the cell membrane. The fibre network helps maintain its shape and gives it support.

Nucleus:
Nucleus contains the DNA and is like a brain

Ribosome:
Ribosomes contain and give out the protein. They connect to each other to build a long chain.

Endoplasmic reticulum:
Endoplasmic reticulum is the network that is inside the cytoplasm of cells involved in transporting things to and from the cell.

Mitochondria:
Mitochondria convert energy into different forms that the cells can use. Mitochondria’s are found in the cytoplasm.

Centrosome:
Centrosomes are found near the nucleus in most cells. They consist of centriole which is surrounded by a centrosphere. The two parts move to opposite poles. This then divides the cell.

The information I got my definitions from are http://www.cellsalive.com/ & http://www.williamsclass.com/SeventhScienceWork/CellTheoryParts.htm and http://www.biologyjunction.com/cell_functions.htm

Epithelial tissue is one of four types of tissues in a body. Epithelial makes up many parts of the body. For example the skin, it also lines the inside of the body and cavities. Epithelial tissue can be divided up into two basic types. The first type is the simple tissue which is made up of one layer of cells. The other type of basic cell is called a stratified epithelium. This is where it has two or more layers of cells. The less basic type of epithelial tissue which is called squamous epithelial tissue which is made up of flattened cells which are comparable to stone shapes. Another less basic tissue is a cuboidal epithelium. A cuboidal

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