Group 4
Peroxisomes
A type of organelle found in both animal cells and plant cells, a peroxisome is a membrane-bound cellular organelle that contains mostly enzymes. Peroxisomes perform important functions, including lipid metabolism and chemical detoxification.
They also carry out oxidation reactions that break down fatty acids and amino acids. They neutralise free radicals, which cause cellular damage and cell death. Peroxisomes chemically neutralize poisons through a process that produces large amounts of toxic H2O2, which is then converted into water and oxygen.
Golgi Apparatus
The job of the Golgi apparatus is to process and bundle macromolecules like proteins and lipids as they are synthesized within the cell. The Golgi apparatus is sometimes compared to a post office inside the cell since one major function is to modify, sort, and package proteins to be secreted.
The Golgi apparatus is made up of sacs called cisternae. Usually five to eight cisternae are present in one Golgi apparatus, but as high a number as sixty cisternae have been observed by scientists. These bundles of sacs have five distinct and functional regions, and each region has different enzymes to help it modify the contents, depending on where they are to end up.
This organelle is also important in other ways, specifically in the transport of lipids throughout the cell and the creation of lysosomes.
The Golgi complex works closely with the rough ER. When the ER makes a protein, a transition vesicle is also made. It drifts through the cytoplasm to the Golgi apparatus where it gets absorbed. After the Golgi works on the molecules inside, it secretes a vesicle into the cytoplasm which releases the protein molecule out of the cell.
Secretory Vesicles
The secretory vesicle is a vesicle that mediates the vesicular transport of cargo - e.g. hormones or neurotransmitters - from an organelle to specific sites at the cell membrane, where it docks and fuses to release its content.
Secretory vesicles are specialized vesicles formed in the trans-golgi apparatus for releasing a product (such as molecule or protein) outside the cell. Secretory vesicles are used for exocytosis. Secretory vesicles hold the enzymes that are used to make the cell walls of plants, protists, fungi, bacteria and Archaea cells as well as the extracellular matrix of animal cells.
Cytoplasm
The jelly-like fluid that fills a cell is called cytoplasm. It is made up of mostly water and salt. Cytoplasm is present within the cell membrane of all cell types and contains all organelles and cell parts. Cytoplasm has various functions in the cell.
Most of the important activities of the cell occur in the cytoplasm. Cytoplasm contains molecules such as enzymes which are responsible for breaking down waste and also aid in metabolic activity.
Cytoplasm is responsible for giving a cell its shape. It helps to fill out the cell and keeps organelles in their place. Without cytoplasm, the cell would be deflated and materials would not be able to pass easily from one organelle to another.
A type of organelle found in both animal cells and plant cells, a peroxisome is a membrane-bound cellular organelle that contains mostly enzymes. Peroxisomes perform important functions, including lipid metabolism and chemical detoxification.
They also carry out oxidation reactions that break down fatty acids and amino acids. They neutralise free radicals, which cause cellular damage and cell death. Peroxisomes chemically neutralize poisons through a process that produces large amounts of toxic H2O2, which is then converted into water and oxygen.
Golgi Apparatus
The job of the Golgi apparatus is to process and bundle macromolecules like proteins and lipids as they are synthesized within the cell. The Golgi apparatus is sometimes compared to a post office inside the cell since one major function is to modify, sort, and package proteins to be secreted.
The Golgi apparatus is made up of sacs called cisternae. Usually five to eight cisternae are present in one Golgi apparatus, but as high a number as sixty cisternae have been observed by scientists. These bundles of sacs have five distinct and functional regions, and each region has different enzymes to help it modify the contents, depending on where they are to end up.
This organelle is also important in other ways, specifically in the transport of lipids throughout the cell and the creation of lysosomes.
The Golgi complex works closely with the rough ER. When the ER makes a protein, a transition vesicle is also made. It drifts through the cytoplasm to the Golgi apparatus where it gets absorbed. After the Golgi works on the molecules inside, it secretes a vesicle into the cytoplasm which releases the protein molecule out of the cell.
Secretory Vesicles
The secretory vesicle is a vesicle that mediates the vesicular transport of cargo - e.g. hormones or neurotransmitters - from an organelle to specific sites at the cell membrane, where it docks and fuses to release its content.
Secretory vesicles are specialized vesicles formed in the trans-golgi apparatus for releasing a product (such as molecule or protein) outside the cell. Secretory vesicles are used for exocytosis. Secretory vesicles hold the enzymes that are used to make the cell walls of plants, protists, fungi, bacteria and Archaea cells as well as the extracellular matrix of animal cells.
Cytoplasm
The jelly-like fluid that fills a cell is called cytoplasm. It is made up of mostly water and salt. Cytoplasm is present within the cell membrane of all cell types and contains all organelles and cell parts. Cytoplasm has various functions in the cell.
Most of the important activities of the cell occur in the cytoplasm. Cytoplasm contains molecules such as enzymes which are responsible for breaking down waste and also aid in metabolic activity.
Cytoplasm is responsible for giving a cell its shape. It helps to fill out the cell and keeps organelles in their place. Without cytoplasm, the cell would be deflated and materials would not be able to pass easily from one organelle to another.