Unit 1 Answers to examination-style questions Answers 1 (a) (i) uild up of fatty deposits/atheroma/ b arterial sclerosis/plaque deposits/ squanderer clots; in walls of arteries; attach Examiners tips 2 You only need to pull back one guidance in which high gear concentrations of cholesterol lead to disease of the arteries. It is strategic that you refer to the trim show of oxygen to the cardiac vigor. This leads to stopping point of the cardiac heftiness cells. (ii) arrowing/blockage (of coronary n 3 max arteries) restricts/reduces blood flow to the heart; heart bonds reduced oxygen preparation/is starved of oxygen; tendon dies/muscle does not hire; 2 (b) ewer people with very high cholesterol f levels; therefore contribution to total/ relational heel of deaths lower; This is really a feature of the way the info has been provided, i.e. number of deaths in a population. 2 (a) left product line ventricle; (b) (i) left) ventricle/heart relaxes/diastole/ ( filling/not dapple; (ii) elastic tissue/wall; recoils/springs back (to main pressure); 1 1 2 A common error is to create a picture that the pressure is maintained by muscle in the arterial wall. Any reference to this would disqualify the aid mark point. 3 (a) ffective pee/sewage treatment/ block e urine contamination/improve hygiene/ vaccination/quarantining of affected heavens; (b) ral rehydration therapy/ORT or oral o rehydration dissolving agent/ORS; replaces lost piddle and salts; OR drinking large amounts of piss; with salts/minerals; (c) receptor/proteins on membrane; complementary shape of exotoxin; (d) (i) diligent transport; victimisation ATP/carrier proteins; (ii) igher solute concentration/water h strength lowered in small gut; osmotic spill of water; 1 Any devil of these ideas for one mark. 2 Many students acknowledgement the sugar employ in ORT/ORS. This provides a source of respiratory substrate. The wat er helps rehydrate the consistence and the ! salts replace those that have been lost....If you want to get a climb essay, order it on our website: OrderCustomPaper.com
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