The ESAT Biology Module: Eleven Topics, Four Blind Spots

The specification lists eleven: cells, movement across membranes, cell division and sex determination, inheritance, DNA, gene technologies, variation, enzymes, animal physiology, ecosystems and plant physiology, coded B1 to B11. On top of that, all modules assume knowledge of the content of Mathematics 1, so the seven maths topics (units, number, ratio and proportion, algebra, geometry, statistics and probability) are examinable inside Biology questions too. Anyone revising in four blocks of cells, genetics, physiology and ecology typically leaves membranes, gene technologies, variation, enzymes and plant physiology entirely untouched.

It is not a matter of preference, it is a matter of what the course requires. Imperial Life Sciences fixes all three modules: Mathematics 1 plus Chemistry plus Biology, with no choice at all. Cambridge Natural Sciences, Veterinary Medicine and Chemical Engineering with Biotechnology, along with Oxford Biomedical Sciences, all specify Mathematics 1 plus any two of Biology, Chemistry, Physics and Mathematics 2, so Biology is one option out of four. For Cambridge Engineering, the Oxford engineering and physics courses and Imperial's engineering departments the modules are set as Mathematics 1, Mathematics 2 and Physics (Chemistry in place of Physics for Chemical Engineering), so Biology never enters the picture. Only where the course leaves the choice open does your own strength in each subject come into it. Note also that if you apply to two courses requiring the ESAT and one specifies its modules, your selection must follow that course or the application to it may be invalid. Module choices cannot be changed without cancelling and rebooking.

No calculator and no dictionary are permitted. The ESAT is computer based and the centre supplies an erasable notebook and a pen for rough work, with fresh sheets available at any point if you raise your hand. The maths requirement comes from the line in the specification stating that all modules assume knowledge of the content of Mathematics 1, and it shows up in four places: ratio and probability inside inheritance and variation, statistics in ecology and data questions, rate and concentration proportionality in membranes and enzymes, and units and orders of magnitude (the specification expects SI prefixes from nano to giga and negative index notation). What needs practising is mental arithmetic, cancelling and estimation, not heavy computation. Put your calculator away during revision or test day will feel considerably harder.

There are none, and UAT-UK is explicit about it: there is no pass/fail score for the ESAT and no grade boundaries are published. What you can rely on is how results are reported. You receive a separate score for each module you take, on a scale from 1 (low) to 9 (high) to one decimal place, with each module equated and scaled separately and no combined total. As for what counts as competitive, no public benchmark exists for the Biology module specifically. Imperial is the only institution to have published department level scores and outcomes; those figures are raw marks out of 27 and cover Aeronautics, Chemical Engineering, Civil and Environmental, Design Engineering, Electrical and Electronic, Mechanical and Physics, not Life Sciences, the one department that requires Biology, and Imperial notes they are historic data that should not be read as requirements for current or future cycles. Cambridge and Oxford publish nothing. So track the two measures you can control: how many of the eleven topics you have genuinely covered, and your accuracy under a full timed block.

School courses and this module are two different maps, and they have to be compared line by line. Start by taking the eleven official topics and ticking off what you have actually studied, then look at the gaps. The four that go missing most often are gene technologies, variation, plant physiology and movement across membranes, because many school routes either place them in an optional slot or fold them into another unit and move on. Then understand the intent behind the paper: the specification states the test is designed to be challenging in order to differentiate effectively between able applicants, including those who might have achieved the highest possible grades in school examinations. Strong school performance is a necessary condition, not a sufficient one. Items answerable by reciting a textbook separate nobody, so what needs practising is data interpretation, mechanistic reasoning and elimination.

No. The 2027 entry windows run 12 to 16 October 2026 and 4 to 8 January 2027, but in mainland China, Hong Kong and Macau the ESAT is offered only on Monday 12 or Tuesday 13 October, and on Wednesday 6 January. UAT-UK explains the reason: following reports in October 2024 of candidates attempting to obtain and sell test content without authorisation, the ESAT and TMUA now run on two days in October and one day in January in those locations. Availability is very limited, so book as soon as registration opens. Booking runs from 20 July 2026 at 15.00 to 28 September 2026 at 18.00 UK time for October, and from 26 October 2026 at 15.00 to 21 December 2026 at 18.00 for January. Remember that you may sit only once per admission cycle, with the two windows counting as a single attempt.

Not directly. Module choices cannot be changed without cancelling and rebooking the test. Given that candidates in mainland China, Hong Kong and Macau only have two days in October and one in January to begin with, rebooking may not find you a seat, so check the requirements for every target course before you pay. There is a related rule people miss: if you apply to two or more courses that require the ESAT, and one has a free choice of modules while another lists compulsory ones, your selection must be dictated by the course with compulsory modules. If you do not register to sit those modules, your application to that course may be invalid.