Animal Cells
Biology-
Animal cell
The NUCLEUS is the largest organelle in the majority of cells. It contains genetic information in DNA, which is responsible for the cells unique characteristics. The nucleus is separated from the rest of the cell by....
...The NUCLEAR ENVELOPE is used as a barrier which separates the contents of the nucleus from the cytoplasm, all in all keeping the DNA safe and intact. The nuclear envelope regulates the flow of substances into and out of the nucleus.
The NUCLEOLUS is an important structure found within the nucleus. The RNA, which will be made into ribosomes is synthesised in the nucleolus. The ribosomes move out of the nucleus to help with protein synthesis.
The ROUGH EDOPLASMIC RETICULUM looks rather “pebbeled” through a microscope because of the ribosome’s that are present on the surface. The ribosomes have under gone protein synthesis and so they collect here to be transported to the Golgi apparatus.
The SMOOTH EDNOPLASMIC RETICULUM appears “smooth” through a microscope (hence the name), these carry out different functions depending on the type of cells for example they allow lipid and steroid hormone synthesis to occur, the breakdown of lipid-soluble toxins within liver cells and they control the calcium released in cell contraction.
The GOLGI APPARATUS is a membrane bound structure with a single membrane, these are important in packaging macromolecules (large molecules e.g. protein, which is made up of smaller components connected together) for transporting elsewhere within the cell. Proteins that are made by the rough endoplasmic reticulum for export are shut of so that a layer of membrane surrounds them, this structure is called a vesicle and will move through the cyosol and fuse with the membrane of the Golgi apparatus.
The RIBOSOMES are too small to be seen through a light microscope. They are the site of protein synthesis, where messenger RNA from the nucleus of the cell is transferred along the ribosome where amino acid
Animal cell
The NUCLEUS is the largest organelle in the majority of cells. It contains genetic information in DNA, which is responsible for the cells unique characteristics. The nucleus is separated from the rest of the cell by....
...The NUCLEAR ENVELOPE is used as a barrier which separates the contents of the nucleus from the cytoplasm, all in all keeping the DNA safe and intact. The nuclear envelope regulates the flow of substances into and out of the nucleus.
The NUCLEOLUS is an important structure found within the nucleus. The RNA, which will be made into ribosomes is synthesised in the nucleolus. The ribosomes move out of the nucleus to help with protein synthesis.
The ROUGH EDOPLASMIC RETICULUM looks rather “pebbeled” through a microscope because of the ribosome’s that are present on the surface. The ribosomes have under gone protein synthesis and so they collect here to be transported to the Golgi apparatus.
The SMOOTH EDNOPLASMIC RETICULUM appears “smooth” through a microscope (hence the name), these carry out different functions depending on the type of cells for example they allow lipid and steroid hormone synthesis to occur, the breakdown of lipid-soluble toxins within liver cells and they control the calcium released in cell contraction.
The GOLGI APPARATUS is a membrane bound structure with a single membrane, these are important in packaging macromolecules (large molecules e.g. protein, which is made up of smaller components connected together) for transporting elsewhere within the cell. Proteins that are made by the rough endoplasmic reticulum for export are shut of so that a layer of membrane surrounds them, this structure is called a vesicle and will move through the cyosol and fuse with the membrane of the Golgi apparatus.
The RIBOSOMES are too small to be seen through a light microscope. They are the site of protein synthesis, where messenger RNA from the nucleus of the cell is transferred along the ribosome where amino acid