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bio vocab test

TermDefinition
Cell basic unit of life
cell theory describes properties of cells
cell membrane thin flexible barrier
Nucleus contains genetic material
Eukaryote DNA in nucleus
Prokaryote no nucleus
Cytoplasm outside of the nucleus
Organelle specialized substructures
Vacuole temporary storage of materials
Lysosome filled with enzymes and break down
Cytoskeleton network of protein filaments
Centriole organize cell division
Ribosome produce proteins
Endoplasmic reticulum site for protein and lipid synthesis
Golgi apparatus modifies, sorts, and packages proteins
Chloroplast photosynthesis
Mitochondria cellular respiration; powerhouse
Cell wall supporting layer around the membrane
Lipid bilayer two layers of phospholipids
Selectively permeable some substances can pass across membrane and others can’t
Passive transport movement of materials across membrane without energy
Diffusion particles move from high to low
Facilitated diffusion pass through special protein channels
Osmosis diffusion of water
Isotonic – same strength
Hypertonic water moves out of cell
Hypotonic water moves into cell
Osmotic pressure net movement of water produces a force
Active transport movement of material against concentration difference; requires energy
Homeostasis constant internal conditions
Virus non living particle
Created by: cjbell42