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Biology - Savage

WCHS Savage Biology Chapter 7

WordDefinition
Cytoplasm clear gel like fluid in cells that holds organelles of the cell, jelly like substance in cell
Mitochondria the membrane bound organelles in plan and animal cells that transform energy for the cell, the powerhouse
Ribosome makes proteins according to directions of DNA
Endoplasmic reticulum chemical reactions in cells take place here, folded membranes, some are smooth, some are rough, some ribosomes attached
Chloroplast cell organelles that capture light energy and convert it to chemical energy, only in plants
Nucleus cell control center
Nucleolus makes ribosomes
Cytoskeleton support structure within the cytoplasm
Lysosome organelles that contain digestive enzymes, breaks down
Cell membrane the gate keeper, allows things to enter and leave the cell
Cell wall supports and protects the cells
Vacuole storage of materials
Golgi apparatus sorts, packages, transports proteins
Chlorophyll green, found only in plants
Hydrophyllic likes water
Hydrophobic afraid of water
Prokaryotes cell without membrane bound organelles, the only prokaryotes are bacteria (archabacteria and eubacteria). All other cells are eukaryotes
Eukaryotes cells with nucleus and organelles
Flagella tail like organelle used for movement
Amino acids building blocks of protein
Cilia short numerous projections that look like hairs for motion
Semi permeable allows only some material to pass through
Plasma membrane outer layer of cell, selectively permeable, made of phospholipids
Robert Hooke used light microscope to study cork, gave the shapes the name cells
Matthaias Schleiden concluded that all plants are made of cells
Theodor Schwann studied animal cells
cell theory Discovered by Virchow, Schleiden and Schwann. Is made up of three main ideas: 1.All organisms are composed of one or more cells. 2. The cell is the basic unit of structure and organization of organisms. 3. All cells come form preexisting cells
Light microscope uses lenses to magnify objects. Invented by Anton Van Leeuwenhoek.
Electron microscope beam of electrons 500,000 times size specimens must be examined in a vacuum
Animal cells have distinct membrane bound organelles. Have a nucleus.
Fluid mosaic fluid because the phospholipids move within the membrane just as water molecules move with the currents in a lake.
Created by: dmoudy
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