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Cells (Organelles (Mitochondria (Rodlike, double-membrane structures. They…
Cells
Organelles
Mitochondria
Rodlike, double-membrane structures. They are the site of ATP synthesis, the powerhouse of the cell.
Peroxisomes
Membranous sacs of oxidase enzymes. They are found a lot in the liver. The enzymes detoxify toxic substances. Also produce catalase.
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Microfilaments
The smallest of the filaments. Produces movement, found near the plasma membrane. Involved in muscle contraction and other types of intracellular movement. Helps form the cell's cytoskeleton.
Golgi apparatus
A stack of smooth membrane sacs close to the rough endoplasmic reticulum. Receives, sorts, and packages proteins to export. Helps enlarge the plasma membrane, and forms lysosome.
Intermediate filaments
Protein fibers, they are stable-permanent, and connected to desmosomes. Resist tension forces acting on the cell.
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Microtubules
Cylindrical structures made of tubulin protein. They build up and breakdown, and they have a lumen. They support the cell and give it shape, and form centrioles
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Centrioles
Composed of nine triplets of microtubules. They organize a microtubule network during mitosis to form the spindle and asters. Also form the bases of cilia and flagella.
Ribosomes
Small dense particles, can be free or attached to rough endoplasmic reticulum. They are the sites of protein synthesis.
Nucleus
Surrounded by the nuclear envelope, contains fluid nucleoplasm, has a nucleolus and chromatin. This is the control center of the cell, responsible for transmitting genetic information and provides instructions for protein synthesis.
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Endocytosis
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Pinocytosis
Vescicle is formed in plasma membrane by ingestion of liquid into a cell. The process is non-selective.
Exocytosis
The contents of a cell are released to the exterior through the cell membrane. Some examples would be the secretion of mucous or proteins from glands of the body.