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bio 4/4

QuestionAnswer
vacuoles store materials like water, salts, proteins and carbs
lysosomes break down stuff and filled with enzymes
diffusion particles move from an area of high concentration to an area of lower concentration
facilitated diffusion process when molecules that cannot directly diffuse across the membrane pass through special protein channels
isotonic same strength
hypertonic above strength
hypotonic below strength
osmotic pressure the net movement of water out of or into a cell produces this force
active transport the movement of materials against a concentration difference
endocytosis the process of taking material into the cell by means of infoldings/pockets of the cell membrance
exocytosis cells release large amounts of material
cell membrane thin flexible layer cells are surrounded by
cytoplasm portion outside nucleus
vacuoles store materials like water, salts, proteins and carbs
lysosomes break down things
cytoskeleton helps cell maintain shape and is involved in movement
centrioles help organize cell division
ribosomes proteins assembled here
ER internal membrane system in eukaryotic cells
golgi apparatus modifies, sorts, and packages proteins and other materials from the ER for storage in the cell or release outside the cell
chloroplasts capture energy from sunlight and convert it into food that contains chemical energy during photosynthesis
mitochondria convert the chemical energy stored in food into compounds that are more convenient for the cell to use
lipid bilayer gives cell membranes a flexible structure that forms a strong barrier between the cell and its surroundings
selectively permeable some substances can pass across them and others cant
Created by: Ljg1237
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