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Inside a Cell
Word | Definition |
---|---|
Cell Membrane | the outer protective covering of the cell |
anatomy | the study of the form and structure of an organism |
physiology | the study of the process of living organisms, or why or how they work |
pathophysiology | the study of how disease occurs and the responses of living organisms to diseases processes |
protoplasm | the basic substance of life |
cell | microscopic structures that carry on all the functions of life |
cytoplasm | a semi-fluid inside the cell |
organelles | cell structures that help a cell to function |
nucleus | a mass in the cytoplasm. controls many cell activities and is important in cell division |
nucleolus | located inside the nucleus, and is important in cell reproduction |
chromatin | located in the nucleus and made of DNA and protein |
centrosome | located in the nucleus and made of DNA and protein |
mitochondria | rod-shaped organelles located throughout the cytoplasm. They break down carbohydrates, proteins, and fats. |
golgi apparatus | a stack of membrane layers located in the cytoplasm. Produces, stores, and packages secretions for discharge of the cell |
endoplasmic reticulum | a fine network of tubular structures located in the cytoplasm. Allows for the transport of materials into and out of the nucleus |
lysosome | oval or round bodies found throughout the cytoplasm. Contain digestive enzymes that digest and destroy old cells, bacteria, and foreign materials, and important function of the body's immune system |
pinocytic vesticles | pocket-like folds in the cell membrane. allows large molecules such as proteins and fats to enter the cell |
mitosis | a form of asexual reproduction |
meiosis | when sex cells are dicvided |
tissue | when cells of the same type join together for a common purpose |
dehydration | if there is not enough tissue fluid |
edema | when their is too much tissue fluid |
epithelial tissue | covers the service of the body and is the main tissue in the skin |
connective tissue | the supporting fabric of organs and other body parts |
nerve tissue | made up of special cells called neurons |
muscle tissue | produces power and movement by contraction of muscle fibers |
organ | two or more tissues joined together to perform a specific function |
system | organs and other body parts joined together to perform a particular function |