ЦТ Biology case studies
ЦТ Biology · Put your knowledge to work in context.
The ЦТ по биологии (Centralized Testing in Biology, often called CT Biology) is a standardized multiple-choice entrance examination used in Belarus for admission to university programmes in medicine, biology, agronomy, ecology, veterinary science, pharmacy and related fields. It is intended for secondary-school graduates and other applicants who need a comparable, centrally scored biology result for competitive admission. The test samples the whole school biology course, from the methodology of biological science and cytology through genetics, plant and animal biology, human anatomy and physiology, to evolution and ecology. Questions are multiple choice and reward precise recall plus the ability to apply concepts to unfamiliar data, so memorising isolated facts is not enough. The ЦТ Biology case studies are 5 cases and about 2,082 words.
1The Salt Marsh Photosynthesis Puzzle
A researcher measures net photosynthesis (mg O₂ released per gram of leaf tissue per hour) in a salt marsh grass across a salinity gradient. At 0‰ salinity, net photosynthesis is 12.0.
428 words, about 2 min2Pedigree with an Unexpected Affected Daughter
A couple seeks genetic counseling. The husband is unaffected; the wife is unaffected.
491 words, about 2 min3Enzyme Kinetics Under Inhibitor Treatment
A student studies an enzyme that converts substrate S to product P. Without inhibitor, Vmax = 100 µmol/min and Km = 2 mM.
388 words, about 2 min4Blood Glucose After a Meal in a Patient
A 45-year-old patient has fasting blood glucose of 7.8 mmol/L (normal 3.9–5.5) on two occasions. After a 75 g oral glucose load, glucose rises to 14.2 mmol/L at 2 hours and remains at 11.0 mmol/L at 3 hours.
375 words, about 2 min5Two Lakes, Two Food Webs
Two adjacent lakes receive runoff from the same watershed. Lake A is clear with abundant submerged macrophytes and a diverse invertebrate community; its fish are mainly visual predators.
400 words, about 2 min