Biology 0.0 / 5 ? BiologyIGCSEAQA Created by: RemyCreated on: 29-04-13 22:16 Diffusion The net movement of particles of a solute or gas from a high concentration to a low concentration 1 of 10 Osmosis The movement of water particles through a partially permeable membrane from a dilute solution to concentrated solution 2 of 10 Plant cells in watter/dilute solution Lower conc of water in cell sap, water diffuses into the vacuole making it push against the cell wall - TURGID 3 of 10 Plants in a concentrated solution Solution outside the cell is more concentrated than cell sap, water diffuses out of vacuole which shrinks and pulls cytoplasm away - FLACID 4 of 10 Active Transport Movement of substances against a concentration gradient and/or a cell membrane using energy 5 of 10 Mitosis Making identical two - assexual cell division where two identical cells are formed. Parent cells -> DNA replicates -> splits into 2 daughter cells 6 of 10 Stem Cells Unspecialised cells that can grow into any type of cell that is needed 7 of 10 Differentiation Process by which cells become specialised and adapted to carry out a particular function in the body 8 of 10 Meiosis Making Eggs - two stage process of cell division which reduces the chromosome number of the daughter cells- sexual with variation. 9 of 10 Sources of stem cells Bone marrow (adult stem cells) and embryos (embroynic stem cells) 10 of 10
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