Nucleus [pic] The nucleus is the control centre of a cell. It contains genetic material such as DNA and controls the cell's growth and reproduction. The nucleus also controls the synthesis of ribosomes and proteins in the cytoplasm. it also involved in cell division and stores all the information that is to be transferred to the next generation Cytoplasm cytoplasm is a homogeneous, which generally clear jelly-like material that fills cells . The cytoplasm consists of cytosol and the cellular organelles , except the nucleus. The cytoplasm offers support for the cell.
It allows the cells organelles to freely move throughout the cell. Movement is sped up in the fluid of the cytoplasm. The cytoplasm can also act as a medium for transport within the cell. Mitochondria: [pic] The mitochondria is the powerhouse of the cell it provides energy to the cell through respiration. The food that we eat is broken into simpler molecules like carbohydrates, fats and etc in our bodies. These are sent to the mitochondrion where they are further precessed to produce charged molecules that combine with oxygen and produce Adenosine TriPhosphate (ATP) molecules.
This entire process is known as oxidative phosphorylation. Mitochondria also helps in the building of certain parts of the blood, and hormones like testosterone and estrogen. Smooth and rough endoplasmic reticulum :[pic] The smooth ER is a system of internal membrane inside the cell which move proteins and other substance through the cell. Smooth ER has its purpose in the cell. It acts as a storage organelle. It is important in the creation and storage of steroids. It also stores ions in solution that the cell may need at a later time.
Steroids are a type of ringed organic molecule used for many purposes in an organism. They are not always about building muscle mass like a weight lifter. The ion storage is important because sometimes a cell needs ions fast. It might not want to search the environment for ions, so it is easier to have them stored in a pack for easy use. Rough ER - looks rough on the surface because it is stubbed with very small organelles called ribosomes. Ribosomes are made of RNA and protein and are the site of protein synthesis. They are very important in the synthesis and packaging of proteins.
Some of those proteins might be used in the cell and some are sent out. The ribosomes are attached to the membrane of the ER. As the ribosomes builds the amino acid chain, the chain is pushed into the ER. When the protein is complete, the rough ER pinches off a vesicle. That vesicle, a small membrane bubble, can move to the cell membrane or the Golgi apparatus Golgi apparatus[pic] The function of the Golgi apparatus is to modify, sort, and package proteins and other materials from the endoplasmic reticulum for storage in the cell or secretion outside the cell.
Lysosome [pic] Lysosomes are single, membrane-bound sacs that contain digestive enzymes. The digestive enzymes break down all the major classes of macromolecules including proteins, carbohydrates, fats, and nucleic acids. Throughout a cell's lifetime, the lysosomal enzymes digest old organelles to make room for newly formed organelles. The lysosomes allow cells to continually renew themselves and prevent the accumulation of cellular toxins.
