Failing the courseWatch this thread
Keep it simple: in a room, take an object, say you have ten apples - how can that no. of apples change? work it out: the no of apples can decrease ONLY if (a) you eat (get rid of) one or two, [or 3, if you are fit like me!! - make biology fun, too] b) you buy less extra ones OR c) you throw some out of the window [mum won't be too happy if you do that!] - there are NO OTHER WAYS in which the no of apples can decrease! - Right?
SAME WAY: Biology Q: How can you get anaemia (= low haemoglobin [Hb] in the blood)? OK - (a). Like apples being eaten, something destroys the Hb = haemolytic (heam = blood; lysis = breakdown) anaemia e.g. in malaria, the parasite enters erythrocytes (red blood cells [eryth = red; cyto = cell]) and makes them burst.(b) Like less apples being bought, less Hb might be produced (brought in) = aplastic anaemia = less Hb produced in the bone marrow of long bones [e.g.femur] e.g. some medicines can have this side effect e.g. phenylbutazone [banned some years ago] for epilepsy.(c) like losing apples out of window, Hb lost out of body = anaemia due to blood loss out of body e. g. EXTERNAL: after severe injury or INTERNAL: bleeding gastric (=of stomach) ulcer.
SEE: easy peasy, lemon squeezy ONLY three main types of anaemia! And you worked out all 3!
Also use association (cross-linking facts from different parts of the syllabus) and Greek roots - so so interesting (so fun, as you youngsters say!): we said above lysis = breakdown: - THINK where else have you heard this syllable? YES correct: lysosome in cell, yeah? Why is it called lysosome? Because it lyses (breaks down, makes sense?) waste e.g. phagocytosed (phago = swallow, take in) bacteria in leucocytes (leuco = white; cyto = cell therefore white cells).
EXAMS: KEEP ANSWERS SHORT and EXACTLY TO THE POINT: KEEP IT SIMPLE! BEST of Luck!!