biology key words 2011 spec 0.0 / 5 ? Biologyb1-7GCSEOCR Created by: alice1steadCreated on: 02-05-16 20:36 homeostasis regulation and maintenance of constant conditions in an organism. 1 of 23 passive immunity happens naturally. Important in young as mums pass immunity through breastfeeding. 2 of 23 gene specific region of DNA that codes for a particular protein. 3 of 23 antibody proteins made by white blood cells to neutralize pathogens. 4 of 23 anaerobic respiration respiration that takes place in the absence of oxygen 5 of 23 clone a genetically identical offspring of an organism 6 of 23 muscle tissue that can contract and relax to produce movement 7 of 23 artery a blood vessel that carries blood away from the heart 8 of 23 evolve to change naturally over time 9 of 23 neuron a specialized cell that transmits electrical impulses when stimulated 10 of 23 species a group of organisms capable of breeding fertile offspring 11 of 23 auxin a plant hormone that effects the growth and development of a plant 12 of 23 vasodilation the widening of blood vessels to let more blood flow 13 of 23 platelet a component of blood that allows it to clot 14 of 23 respiration the liberation of energy from food 15 of 23 sprain a stretch or tear in a ligament 16 of 23 allele an alternative version of a gene 17 of 23 blood pressure the force of blood exerted on the inside walls of blood vessels 18 of 23 fuel a substance that releases energy when burned in the presence of oxygen 19 of 23 genetic modification the change in the genetic makeup of an organism 20 of 23 diffusion movement of particles from high to low concentration down a concentration gradient 21 of 23 vein a type of blood vessel that transports blood towards the heart 22 of 23 negative feedback a process in which signal from a receptor instructs an effector to reverse an action 23 of 23
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