Biology Notes on Biology 1.0 / 5 based on 1 rating ? BiologyGCSEAQA Created by: Henry ZupynCreated on: 04-05-13 13:30 Diffusion is the net movement of molecules from a region of their higher concentration to a region of their lower concentration 1 of 12 Algae is a simple plant-like organism, e.g. seaweed 2 of 12 specialised cell their function and their structure related to function, e.g. sperm cell, tail for swimming 3 of 12 Xylem Vessels transport water and minerals up the plant 4 of 12 Muscles cells contract and enable movement of the body 5 of 12 Red blood cells transport oxygen 6 of 12 A tissue is a group of similar cells that all work together to carry out a particular function 7 of 12 An organ structure is made of a group of tissues working together to perform specific functions 8 of 12 An organ system is a group of organs coordinated to perform related functions 9 of 12 Independent Variable CHANGED e.g. the temperature. light intensity ect.. 10 of 12 Dependent Variable MEASURED e.g. number of oxygen bubbles or volume of gas 11 of 12 Control Variable KEEP THE SAME e.g. type of pond weed, temperature ect.. 12 of 12
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