Organisation 0.0 / 5 ? ScienceOrganisationGCSEAQA Created by: hayleylambertCreated on: 11-05-18 12:23 What is a tissue? A tissue is a group of similar cells that work together to carry out particular function 1 of 16 Explain what is meant by the term 'organ system' An organ system us a group of organs working together to perform a particular function. 2 of 16 What is an enzyme? a substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction. 3 of 16 List the three places where amylase is made in the human body. Salivary gland/pancreas/small intestine 4 of 16 Where is bile stored? Liver 5 of 16 Name the tubes that split off the trachea Bronchi 6 of 16 Why does the heat have valves? The heart has valves to make sure that blood flows in the right direction- they prevent it flowing backwards. 7 of 16 What are the four chambers of the heart? right atrium/right ventricle/left atrium/left ventricle 8 of 16 What are the function of the 3 blood vessels? Arteries= carry blood away from heart/ Capillaries=involved in the exchange of materials at the tissues/ Veins= carry blood to the heart 9 of 16 What are the functions of the red blood cells, white blood cells, platelets and plasma? RBC= carry oxygen / WBC= defend against infection/ Platelets= help blood clots/ Plasma= liquid that carries everything in blood 10 of 16 What is meant by a non-communicable disease? Non- communicable disease are those that cannot spread by people or animal 11 of 16 What is meant by risk factor of a disease? increase your chance of getting a disease 12 of 16 List the tissues that make up a leaf Epidermal/Mesophyll/Xylem/Phloem 13 of 16 What is transpiration? Transpiration is caused by the evaporation and diffusion of water from a plant's surface. 14 of 16 What are the four main things that affect transpiration? Light intensity/temperature/air flow/ humidity 15 of 16 Name the type of cell that helps open and close the stomata Guard cell 16 of 16
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