Key Facts · Imperial
Biological Sciences BSc at Imperial College London is a 3-year, full-time BSc (Hons) with UCAS code C100 for 2027 entry, a verified AAA A-level minimum entry standard and an ESAT requirement in Mathematics 1, Chemistry and Biology. The course starts with broad biological foundations, then moves into optional specialisation and a final-year research project.
Section 01
International Applicants
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Select a highlighted country to see the admissions-test, score, and English-language requirements that apply specifically to applicants from that country.
Section 02
| Qualification | Typical Offer | Key Requirements |
|---|---|---|
| A-Level | AAA | Biology, One of Chemistry, Mathematics or Physics, A third subject required. General Studies, Critical Thinking not accepted.Students taking English exam-board science A-levels are expected to pass the practical endorsement in all science subjects that form part of the offer. |
| IB Diploma | 38 points | HL: 6 in Biology at higher level, 6 in Chemistry, Mathematics or Physics at higher level required.Imperial entry-requirements evidence checked for this audit indicated that both Mathematics: Analysis and Approaches and Mathematics: Applications and Interpretation are accepted at higher level with no stated preference; the ledger marks this point as partial, so applicants should verify it before applying. |
| Advanced Placement (AP) | Usually 3–4 AP tests at grade 5; exact C100 AP details should be checked on Imperial's live course page. | AP Biology (subject to live course-page confirmation), One of AP Chemistry, AP Physics B or C, AP Calculus AB or BC (subject to live course-page confirmation), A further AP subject, where required by Imperial's current AP offer pattern required. SAT/ACT: ACT and SAT are not accepted as entry qualifications by Imperial..Course-specific C100 AP subject mapping was only partially verified in the audit. Applicants should check the live Imperial course page and accepted-qualifications selector before confirming qualifications. |
Section 03
How It Ranks Against Peers
| University | Guardian UK | CUG UK | Times UK |
|---|---|---|---|
| University of Cambridge | #1 | #1 | — |
| University of Oxford | #5 | #2 | — |
| Durham University | #2 | #3 | — |
| Imperial College London | #20 | #4 | #4 |
| University of Edinburgh | #4 | #6 | — |
| University College London | — | #8 | — |
University of Cambridge
University of Oxford
Durham University
Imperial College London
University of Edinburgh
University College London
Ranks shown are UK subject-table positions from the three major UK guides. World rankings are not included — UK applicants compare using UK-focused sources.
Imperial's primary UK subject-rank display is #4, but the ranking evidence should be read carefully because the Guardian, Complete University Guide and Times/Sunday Times tables use different methodologies and subject groupings. The peer table places Imperial at #4 in Complete University Guide Biological Sciences and #4 in the Times/Sunday Times Good University Guide slice, while the Guardian Biology row is #20.
Section 04
YEAR 12 — SPRING
Check that Biological Sciences BSc (C100) matches your subject profile: Biology plus Chemistry, Mathematics or Physics at A-level-equivalent standard. Build evidence of sustained biological-sciences interest through reading, practical experience, competitions, projects or lectures.
Tip:Flag the 2027 ESAT requirement early; it is a change from older Imperial Life Sciences material.
1 JUN — 28 SEP
UAT-UK account creation, bursary and access-arrangement requests open on 1 June 2026; October test booking opens on 20 July and closes on 28 September 2026 at 18:00 UK time. January sitting booking opens on 26 October 2026 and closes on 21 December 2026. For C100, book ESAT Mathematics 1, Chemistry and Biology.
Tip:Apply for access arrangements or a bursary before booking where relevant; these have earlier review deadlines.
1 SEP — 13 JAN
Completed UCAS applications can be submitted from 1 September 2026. For equal consideration for Imperial Biological Sciences, submit by 13 January 2027 at 18:00 UK time.
Tip:Your school or college may set an earlier internal deadline for checking the reference and predicted grades.
12 — 16 OCT / 4 — 8 JAN
Imperial applicants can use either the October 2026 or January 2027 UAT-UK sitting, but applicants also applying to Oxford or Cambridge should normally use the October sitting. ESAT is computer-based and module-based.
Tip:Do not assume older 'no admissions test' guidance still applies for 2027 entry.
16 NOV / 8 FEB
UAT-UK releases October-sitting results on 16 November 2026 and January-sitting results on 8 February 2027 via the candidate account. Universities receive test information as part of their admissions assessment.
Tip:Use the result to understand your competitiveness, but do not wait for it before improving the rest of the application.
LATE JAN — MAR
Track the application in UCAS Hub. UCAS states that providers should aim to have sent decisions on applications submitted by 13 January by 31 March 2027.
Tip:Check email and UCAS Hub regularly; missed messages can delay responding to an offer.
5 MAY / 2 JUN
If all your decisions arrive by 31 March 2027, the UCAS undergraduate reply deadline is 5 May 2027. If all decisions arrive by 12 May 2027, the reply deadline is 2 June 2027.
Tip:Choose a firm and, if useful, an insurance option with conditions you would genuinely accept.
JUL — 18 OCT
UCAS Extra opens on 25 February 2027 for eligible applicants, Clearing opens on 2 July 2027, and the last date to add a 2027 Clearing choice is 18 October 2027. Availability for Imperial Biological Sciences is not guaranteed.
Tip:Prepare a backup plan before results day rather than making rushed decisions under pressure.
12 AUG
A-level results are provisionally available to students on Thursday 12 August 2027. If you meet the conditions of your Imperial offer, UCAS Hub should show confirmation once results are processed.
Tip:Have your UCAS login, Imperial offer details and contact information ready before results day.
YEAR 12 — SPRING
Check that Biological Sciences BSc (C100) matches your subject profile: Biology plus Chemistry, Mathematics or Physics at A-level-equivalent standard. Build evidence of sustained biological-sciences interest through reading, practical experience, competitions, projects or lectures.
Tip:Flag the 2027 ESAT requirement early; it is a change from older Imperial Life Sciences material.
1 JUN — 28 SEP
UAT-UK account creation, bursary and access-arrangement requests open on 1 June 2026; October test booking opens on 20 July and closes on 28 September 2026 at 18:00 UK time. January sitting booking opens on 26 October 2026 and closes on 21 December 2026. For C100, book ESAT Mathematics 1, Chemistry and Biology.
Tip:Apply for access arrangements or a bursary before booking where relevant; these have earlier review deadlines.
1 SEP — 13 JAN
Completed UCAS applications can be submitted from 1 September 2026. For equal consideration for Imperial Biological Sciences, submit by 13 January 2027 at 18:00 UK time.
Tip:Your school or college may set an earlier internal deadline for checking the reference and predicted grades.
12 — 16 OCT / 4 — 8 JAN
Imperial applicants can use either the October 2026 or January 2027 UAT-UK sitting, but applicants also applying to Oxford or Cambridge should normally use the October sitting. ESAT is computer-based and module-based.
Tip:Do not assume older 'no admissions test' guidance still applies for 2027 entry.
16 NOV / 8 FEB
UAT-UK releases October-sitting results on 16 November 2026 and January-sitting results on 8 February 2027 via the candidate account. Universities receive test information as part of their admissions assessment.
Tip:Use the result to understand your competitiveness, but do not wait for it before improving the rest of the application.
LATE JAN — MAR
Track the application in UCAS Hub. UCAS states that providers should aim to have sent decisions on applications submitted by 13 January by 31 March 2027.
Tip:Check email and UCAS Hub regularly; missed messages can delay responding to an offer.
5 MAY / 2 JUN
If all your decisions arrive by 31 March 2027, the UCAS undergraduate reply deadline is 5 May 2027. If all decisions arrive by 12 May 2027, the reply deadline is 2 June 2027.
Tip:Choose a firm and, if useful, an insurance option with conditions you would genuinely accept.
JUL — 18 OCT
UCAS Extra opens on 25 February 2027 for eligible applicants, Clearing opens on 2 July 2027, and the last date to add a 2027 Clearing choice is 18 October 2027. Availability for Imperial Biological Sciences is not guaranteed.
Tip:Prepare a backup plan before results day rather than making rushed decisions under pressure.
12 AUG
A-level results are provisionally available to students on Thursday 12 August 2027. If you meet the conditions of your Imperial offer, UCAS Hub should show confirmation once results are processed.
Tip:Have your UCAS login, Imperial offer details and contact information ready before results day.
Section 05
For 2027 entry, Imperial Biological Sciences BSc C100 requires the Engineering and Science Admissions Test, or ESAT. The required ESAT modules are Mathematics 1, Chemistry and Biology. UAT-UK delivers the computer-based test through Pearson VUE test centres.
Imperial applicants can use the 12–16 October 2026 sitting or the 4–8 January 2027 sitting, and there is no advantage to either sitting for Imperial applicants. Account creation, bursary and access-arrangement requests open on 1 June 2026; October booking opens on 20 July 2026 and closes on 28 September 2026 at 18:00 UK time; January booking opens on 26 October 2026 and closes on 21 December 2026 at 18:00 GMT. Results are released on 16 November 2026 for the October sitting and 8 February 2027 for the January sitting.
This is a major change from older material: for 2027 entry, Biological Sciences BSc C100 is newly mapped to ESAT with Mathematics 1, Chemistry and Biology modules. The ESAT is best used to sharpen core Biology, Chemistry and Mathematics 1 problem-solving through Year 12 and early Year 13, not as a separate bolt-on at the end.
For international applicants, the ESAT matters because it gives Imperial a common scored academic measure across different school systems. UAT-UK states that there is no ESAT pass/fail score and that scores are typically used alongside the wider university application, so no official threshold should be invented. Early preparation keeps the October sitting realistic, especially for applicants also applying to Oxford or Cambridge.
Full ESAT preparation guide | format, scoring, strategy, and practice resources.
ESAT Guide →Section 06
Interview Invitation
Late Nov
Arrival to Interview
Early Dec
Technical Question
Mid Dec
Decision
Early Jan
Interview Invitation
Late Nov
Arrival to Interview
Early Dec
Technical Question
Mid Dec
Decision
Early Jan
Practise with realistic questions from our free Biological Sciences mock interview bank.
Free Mock Questions →Section 07
Weighting of Admission Factors
100%
Indicative — exact balance varies by college and year.
For 2027 entry, treat Imperial Biological Sciences selection as holistic but test-supported: academic eligibility and subject fit are checked against the C100 requirements, and ESAT performance is now part of the evidence base.
Those weights are editorial estimates for visualisation, not an Imperial-published formula. In reality, the key point is simpler: the application has to show the right subject base, enough scientific maturity for the ESAT, and a credible reason for choosing Biological Sciences rather than a broad life-sciences label.
No routine interview requirement was verified for C100 in the sources checked. That makes the UCAS form, ESAT evidence, reference and academic profile more important, because there may not be a later interview conversation to correct a vague or under-evidenced application.
Section 08
Imperial's selection guidance in departmental admissions tutors consider the personal statement, so it should give evidence of scientific curiosity, independent reading, practical awareness and fit for Biological Sciences. Build the statement around two or three biological questions you have actually pursued, rather than listing every book, podcast, placement or competition.
A strong C100 statement can connect molecular detail with wider biological consequences. For example, antimicrobial resistance is stronger when you explain a mechanism, a data pattern and a clinical or ecological consequence, rather than simply saying that it is important.
It helps to show how you think with evidence. Mention what you read, what surprised you, what limitation you noticed, and what you did next. Reflection matters more than volume.
See a full annotated example with line-by-line expert commentary.
Biological Sciences PS Example →Section 09
Projects are useful when they show method, evidence and reflection. One or two focused projects are enough when they let you explain why you asked the question, how you tested or researched it, and what changed as a result.
How to present a project:
Other supercurricular work should support your biological thinking rather than decorate the application. The best activities usually help you read better, observe more carefully, handle data, or communicate mechanisms clearly.
These are support, not substitute. A short activity that changes how you think is better than a long list you cannot discuss.
Competitions are not required. What they do well is stretch your problem-solving and give you a reason to revise beyond the specification.
None are required; one or two done well beats five half-attempted.
Section 10
The first year builds a broad grounding across biological chemistry, microbiology, cell biology, genetics, evolution and organismal diversity. It is designed to give students the scientific base and practical habits needed for more specialised study later in the degree.
Common first-year platform across fundamental biological sciences.
The second year moves into applied biology and genetics while allowing students to specialise through optional modules. Optional study can cover areas such as ecology, molecular biology, microbiology, immunology, parasitology, virology and cell/developmental biology.
First substantial opportunity to tailor the degree through optional biological sciences modules.
The final year is centred on advanced optional study and a substantial research project. Students use the scientific and analytical skills built over the first two years to investigate a topic in depth and prepare for postgraduate study or careers across the life sciences.
Culminates in an extensive research project that develops a student’s identity as a life scientist.
Section 11
Build knowledge across molecules, cells, organisms, ecology and data. Choose a small number of resources and take notes on the biological question, the evidence used and the uncertainty left open.
Section 12
Where graduates of this course head after leaving — by sector, as reported in the university’s destinations survey.
Full employer lists, median salary bands, and sector notes live on the careers data page.
Imperial Life Sciences outcomes are strongly weighted towards further study and research progression, with direct routes also identified across research, pharmaceuticals, biotechnology, biomedical science, agrisciences, food technology, environmental management and adjacent analytical or data-led roles. The degree structure can help applicants test which route fits best: laboratory research, ecological fieldwork, quantitative biology and scientific communication each point towards different next steps.
Section 13
Imperial has a contextual admissions process for undergraduate applicants and reviews the policy annually, but contextual consideration does not remove course-specific subject or ESAT requirements. For C100, you still need to evidence Biology plus one of Chemistry, Mathematics or Physics.
If school subject availability, illness, caring responsibilities or disruption affected your academic profile, the referee should explain this clearly rather than leaving the personal statement to carry the context. International applicants should not assume contextual markers are identical to UK widening-participation markers, so country and school context should be evidenced directly where relevant.
Watch & Learn
Student vlogs, mock interviews, lecture tasters, and admissions advice.
Official Imperial video introducing the Biological Sciences BSc course.
CrashCourse overview of biological molecules and why molecular structure matters.
Amoeba Sisters explanation of DNA replication mechanisms and vocabulary.
HHMI BioInteractive video connecting genes, evolution and molecular evidence.
HHMI BioInteractive video on gene regulation and evolutionary change.
All videos are the property of their respective creators.
Further Reading
Super-curricular reading, websites, and tools recommended by our expert tutors.
by Imperial College London
Primary source for C100 entry requirements, course overview, fees and applicants-per-place.
by Imperial College London
Best source for country-specific qualification acceptability and grade equivalence.
by Imperial College London
Primary source for higher English-language requirements and accepted alternatives.
by Imperial College London
Explains CAS and Student visa process for international offer-holders; cross-check with GOV.UK for current visa rules.
by UK Biology Competitions
High-value challenge for applicants who want to evidence biology beyond the school syllabus.
by HHMI BioInteractive
Reliable library of biology animations, data activities and research-linked teaching resources.
by Nature
Good ongoing source for current research stories and scientific communication practice.
by The Open University
Free, structured courses for building subject knowledge before university.
Free Resource
Free Admissions Newsletter
Weekly tips on Biological Sciences admissions, application deadlines, and interview prep — straight from Imperial graduates.