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Biology Ch. 7 Test

TermDefinition
Robert Hooke discovered cells by viewing cork bark
Anton van Leeuwenhoek viewed pond water and saw micro organisms
Matthias Schleiden stated that all plants are made of cells
Theodor Schwann stated that all animals are made of cells
Rudolf Virchow stated new cells could only be created from existing cells
Cell Theory 1. all living things are composed of cells 2. cells are the basic unit of structure and function 3. new cells are created from pre-existing cells
Q: What are two things all cells share in common? A: -they have flexible outer membranes -they contain heredity molecules (DNA)
Eukaryotic Cells have membrane-bound organelles
Prokaryotic Cells do not have membrane-bound organelles
nucleus -contains most of the cell's DNA -controls activities
ribosome makes proteins
mitochondria converts energy in food into ATP
chloroplast converts light to sugars (photosynthesis)
rough ER makes and modifies proteins
smooth ER makes lipids and does detoxification
Golgi apparatus sorts and packages proteins
vacuole stores water and minerals
lysosome a sac of digestive enzymes
cytoskeleton supports animal cell; helps with movement of cell
cell membrane regulates what enters and leaves the cell
cell wall protection and support of a plant cell
diffusion -high to low concentration -no protein -no energy
osmosis -high to low concentration -no protein -no energy
facilitated diffusion -high to low concentration -yes protein -no energy
active transport -low to high energy -yes protein -yes energy
cell basic unit of structure and function
tissue similar cells that work together preforming the same function
organ collection of different tissues preforming the same function
organ system collection of different organs preforming a similar function
Created by: m7a7d7
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