formed. bubbles help dislodge debris that enter wound that could lead to infection. Mitochondria - rodlike structures surrounded by double membrane. breaksdown organic molecules chemical bonds releasing energy to create ATP Adenosine Triphosphate ATP - created by breakdown of molecules in Mitochondria, and it is the fuel for cellular metabolism The mitochondrias inner membrane - encloses a gel matrix of DNA and Ribosomes so mitochondria can synthesize some of its own proteins the inner membrane of mitochondria has cristae - cristae are numerous inward folds in inner membrane Free Ribosomes - not attached to RER. Synthesize proteins for metabolic processes in cytosol Cytoskeleton - inner framework of cell. Cytoskeleton has 3 types of protein filaments - Microtubules Intermediate filaments Microfilaments Centrioles - paired cylindrical structures, arranged perpendicular to eachother. Centrioles are located at - one end of nucleus, in an area of cytoplasm known as centrosome Each centriole is composed of - nine triplets of microtubules that are arranged to form a tube or cylinder. Centrioles produce 3 things - microtubules of cytoskeleton. the microtubule spindles used during mitosis and meiosis. Forms basal bodies from which cilia and flagella are produced Centrosome - gel around centrioles. Floats in cytoplasm near nucleus.
Cilia and Flagella - Surface projections. Cilia are shorter, propel substances over cell surface. Flagella are long, used for motion. Cilia and flagella are composed of - nine pairs of microtubules surrounded by a central pair. microvilli - tiny like fonger projections increase surface area of cell membrane.