SPM Biology case studies
SPM Biology · Put your knowledge to work in context.
SPM Biologi is one of the elective science subjects within the Sijil Pelajaran Malaysia (SPM), the national school-leaving certification for the Peringkat Menengah Atas (upper secondary level) administered by Lembaga Peperiksaan, an agency listed on the official Ministry of Education examination portal. Candidates are typically Form 4 and Form 5 students in the science stream who need Biology for entry into pre-university, matriculation, or diploma pathways in medicine, health sciences, agriculture, biotechnology, and environmental fields. The SPM Biology case studies are 5 cases and about 4,227 words.
1Ringing a Mango Branch: Sugar Blockage or Disease?
Encik Rahim manages a 2-hectare mango orchard in Perak. In March he removed a 2 cm ring of bark, including the phloem, all the way round one lower branch on each of 10 trees, leaving the inner wood intact.
921 words, about 5 min2Potato Osmosis Practical: Which Reading Is Wrong, and Can It Prove a Drink Is 'Isotonic'?
A Form 5 student investigates the water potential of potato tissue. She cuts 30 cylinders of equal length and diameter from one tuber, blots them, weighs them, and places five cylinders in each of six sucrose solutions: 0.0, 0.2, 0.4, 0.6, 0.8 and 1.0 mol dm⁻³.
857 words, about 4 min3Collapsed After a Hot Race: Hyponatraemia or Heat Stroke?
A 42-year-old runner finished a 42 km race in 4 h 20 min on a day when the air temperature was 31 °C and relative humidity 85 %. He lost about 3.5 L of sweat, which he replaced by drinking about 5 L of plain water at the water stations.
783 words, about 4 min4A Thalassaemia Family: Working Out the Risk and Weighing the Options
A married couple, both 30 years old, are healthy and not related. Their 5-year-old daughter was diagnosed with beta-thalassaemia major at 8 months of age; she needs a blood transfusion every 4 weeks and her haemoglobin is maintained at about 9 g/dL.
817 words, about 4 min5A Polluted River: Explaining the Fish Kill and Choosing a Treatment
A 12 km river passes a housing estate of 300 households and a palm oil mill. Residents use the water for washing and children play at the bank.
849 words, about 4 min