GCSE Cell Biology Keywords 0.0 / 5 ? BiologyCells, tissues and organsGCSEEdexcel Created by: Meher SCreated on: 18-05-18 17:01 Cells All living things are made out of cells. 1 of 31 Eukaryotic A complex cell which contains a nucleus. 2 of 31 Prokaryotic A small simple cell without a nucleus. 3 of 31 Nucleus Contains the genetic information so controls the activities of the cell. 4 of 31 Cytoplasm Gel-like substance where most chemical reactions take place. 5 of 31 Cell Membrane Controls what goes in and out of the cell. 6 of 31 Mitochondria Where respiration happens 7 of 31 Ribosomes Where protein-synthesis takes place. 8 of 31 Cell Wall Gives strength and support to plant and bacteria cells 9 of 31 Vacuole Found in plant cells, contains cell sap to give strength to the cell 10 of 31 Chloroplasts Found in plant cells, contains chlorophyll for photosynthesis. 11 of 31 Respiration The chemical reaction which releases energy from glucose. 12 of 31 Photosynthesis Plants use light energy to convert carbon dioxide and water into glucose and oxygen. 13 of 31 Plasmids Circular DNA found in bacteria 14 of 31 Microscope Allows us to see things we can't see with the naked eye. 15 of 31 Magnification Magnification= Image size/ real size 16 of 31 Differentiation The process by which a cell becomes specialised for its job. 17 of 31 Stem cell An undifferentiated cell which can differentiate into many different types of cells 18 of 31 Specialised cell A cell that performs a specific function 19 of 31 Chromosomes Long, coiled molecule of DNA found in the nucleus 20 of 31 Mitosis Type of celll division where two identical daughter cells are produced from one parent cell. 21 of 31 Binary fission Type of cell division carried out by bacteria cells. 22 of 31 Diffusion The spreading out of particles from an area of higher concentration to an area of lower concentration. 23 of 31 Osmosis The movement of water across a partially permeable membrane from a region of higher water concentration to an area of lower water concentration 24 of 31 Active Transport The movement of particles against a concentration gradient (from an area of lower concentration to an area of higher concentration), requires energy. 25 of 31 Multicellular An organism made up of more than one cell 26 of 31 Alveoli Tiny air sacs in the lungs, where gas exchange happens. 27 of 31 Villi Tiny projections found on the inside of the small intestine, increasing the surface area for the last absorption of nutrients. 28 of 31 Stomata Tiny holes found on the underside of leaves, for gas exchange. 29 of 31 Guard cells Found on either cell of the stomata, controls the size of the stomata. 30 of 31 Gills The gas exchange surface found in fish. 31 of 31
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