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General Anatomy
Chapter 2
Term | Definition |
---|---|
Plasma (cell) Membrane | "plasmalemma" act as a barrier, regulate exchange, detect changes, structural support, location of attachment made of fats, proteins, and carbs |
Cytoplasm | material located between the cell membrane and the membrane of the nucleus, made of cytosol and organelles |
Cytoskeleton | *organelle* cell skeleton, made of protein, |
Microvilli | *organelle* fingerlike projections |
Centrioles | *organelle* associated w/ movement of DNA during cell division |
Cilica | *organelle* long slender extensions of the cell membrane |
Ribosomes | *organelle* performs protein synthesis |
Proteasomes | *organelle* protein digesting enzymes, (proteases) break down damaged proteins |
Endoplasnic Reticulum | *organelle* smooth ER =NO ribosomes it syntheses fats, hormones & sugar. rough ER = ribosomes it aids in protein modification |
Golgi Apparatus | *organelle* packaging and renewing |
Lysosomes | *organelle* clean the cell |
Peroxisomes | *organelle* break down fatty acids and other organic compounds |
Mitochondria | *organelle* double folded membrane w/ cristae convert carbs to ATP via the tricarboxylic acid cycle (TCA) (krebs) |
Nucleus | *organelle* largest organelle, control center |
Nucleus Contains: | nucleoplasm: fluid nuclear matrix: structure chromosomes: DNA attached to histones (46, 23 pairs) |
DNA | 4 repeating nitrogenous bases: Adenine Thymine Cytosine Guanine |
Mitosis | the division on the nucleus of a somatic body into 2 cells |
interphase | most of a cell's life, regular function |
prophase | 1st, nuclear envelope dissolves |
Metaphase | 2nd, chromosomes line up in the middle |
Anaphase | 3rd, chromosomes separate to each side |
Telophase | 4th, nuclear envelope forms and surrounds each set of chromosomes |
Neurons | cells that transmit electrical messages |
Neuroglia (Glial cells) | support neurons |