B3 2.0 / 5 based on 1 rating ? BiologyGCSEAQA Created by: LizzieCreated on: 11-05-13 14:20 What is osmosis? the diffusion of water across a partially permeable membrane 1 of 16 when might active transport occur? for glucose to be reabsorbed by the kidney tubules 2 of 16 Sports drinks contain water to... replace water lost when sweating and rehydrate body cells 3 of 16 Wich of these is NOT a reason why someone might require a breathing aid? if the coronary arteries have become narrowed due to fatty deposits 4 of 16 How does gas diffuse in and out of leaves? through tiny holes called stomata 5 of 16 What is the transpiration stream? the movement of water through the plant 6 of 16 what does the vena cava do? Brings venuous blood from the head and body to the right atrium 7 of 16 what are red blood cells? bio-concave discs, with no nucleus, with carry oxyhaemoglobin 8 of 16 What are platelets? fragments of cells which clot at the site of the wound 9 of 16 What are white blood cells? part of the body's defence system to fight microoganisms 10 of 16 What is plasma? fluid to transport cells, and other substances such as solutes, urea and CO2 11 of 16 What are stents used for? to keeps blood vessels, eg. the coronary arteries if they have become blocked due to fatty deposits 12 of 16 which tissue transports mineral ions and water from the roots to the stem, leaves and flowers? xylem tissue 13 of 16 What is urea? the breakdown of amino acids, made in the liver 14 of 16 how is carbon dioxide sequestered? Dissolved into the oceans and taken in by plants 15 of 16 Wich of these is NOT a feature of industrial fermenters? airtight for anaerobic fermentation 16 of 16
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