A-level osmosis required practical notes, targeting courses including AQA 3.2.3 and required practicals 3 and 4 and OCR A 2.1.5. The notes include diagrams on how to plot a graph of the data and some exam technique practice on how to answer questions on getting valid data, and links to good videos. The notes are bullet point style and easy to read. This set of notes is particularly targeted towards revising the practical come exam time and doesn’t include a detailed practical methodology. NOTE: my apologies, the original uploaded version had some words missing explaining the effect of evaporation on water potential, this has now been corrected.

It’s a real difficulty for students that the AQA A-level biology textbook doesn’t include a diagram of an ELISA. So here’s notes on one page covering the ELISA stages, with a diagram of the specific type of ELISA on the AQA course (an indirect ELISA), and explaining how it links to other things students may know about like pregnancy tests and COVID lateral flow tests. There’s an explanation of what monoclonal antibodies are, explanation of artificial passive immunity as an extension, and links to some good videos. 9/3/2024 update: new version! Clearer numbering of the stages to link diagram to text, shortened URLs, brighter colours and better paragraphing. Also added a version tuned to print better in black and white.

Worksheet for AQA A-level biology plant tropism on two pages, covering IAA, phototropism, gravitotropism, the acid growth hypothesis and an experiment design question. Versions for colour and black and white printing and a detailed mark scheme. Written for the new 2015 specification. Doing a different specification? I have versions for AQA GCSE current specification, Edexcel GCSE and Cambridge iGCSE in a similar style. 2024 update: edited to give students more space for writing answers.

I’ve found respiration is one of the most important things for students to get right studying biology. The equations are so important, but many GCSE and even some weaker A-level biology students can’t instantly give them. I explain to students that they’re an instant grade boost. Here’s a worksheet and set of notes on one page on the most common respiration questions. There’s the word equations, a guide through the standard question about how your heart and breathing rate change with exercise, and there’s links to some recommended videos. Versions included for colour and black and white printing. Full mark scheme included with the worksheet. Remembering the equations for respiration is one of the last things I always go over with students just before their exams, because it’s such a morale booster to instantly get full marks on one of these questions. I will never forget what one student told me in 2021: “It came up! Exactly what you said, it came up!” This set of notes targets Edexcel 9-1 iGCSE biology and uses lactate as the standard term rather than lactic acid. I have a version targeted towards other GCSEs such as the AQA course as well. Questions consulted as models for answers included the 1B 2019 and 1BR 2020 papers and 2B 2017.

Notes on capture mark, release and recapture population estimates, suitable for courses including A-level biology and Edexcel GCSE statistics. Covering one page, the assumptions and the idea of a reciprocal are explained and there’s two model calculations.

One page revision notes for AQA explaining the idea of error bars. I include model answers for a range of types of question and explanation of what p < 0.05 means. I list a couple of past paper questions which have good questions to practice from, all from the current specification. AQA want you to say that differences are significant if error bars don’t overlap, even though in reality it’s more complicated than that. I clearly explain this and say that this idea shouldn’t be used if students go on to degree-level statistics. Questions and mark schemes consulted in writing these notes included: significant difference: 74022 2020 2.4 differences that are not significant: 74012 2019 1.2 range error bars: 74023 2017 2.5 no error bars: 74022 2020 7.2 probability and chance: 74021 2019 4.4 Update, 2024: Following feedback from a student, added scale to clarify that the error bar shows mean ± SD. Clarified that the comments on probability/significance are when comparing means (so e.g. wouldn’t apply to the chi-squared test).

Worksheet on homeostasis and thyroid function, covering thyroxine, TSH and nutrient deficiencies as well as revising homeostasis and negative feedback generally. This two-page worksheet has plenty of illustrations and diagrams to help students remember the topic. Targets the AQA 9-1 biology GCSE. There’s versions of the worksheet for colour and black and white printing and an in-depth mark scheme. Doing Edexcel GCSE? I have a separate version targeting that course specifically. 2024 update: fixed a glitch with question numbering and following feedback from students, added more space for writing down some answers.

Worksheet for Cambridge iGCSE biology plant hormones on two pages, covering IAA, phototropism, gravitotropism, the effects of auxin and an experiment design question. Versions for colour and black and white printing and a detailed mark scheme. October 2024 update: added more space for writing answers.

Two-page worksheet on plant hormones for the Edexcel 9-1 biology GCSE. Covers phototropism, geotropism, gibberellins and their industrial uses, ethene and an experiment design questions. Versions in colour and for black and white printing. There’s an in-depth mark scheme. Doing AQA GCSE? I have a separate version. Doing Edexcel iGCSE? This pack isn’t needed, the course doesn’t go into so much detail.

Flow diagram showing the menstrual cycle on one page. Suitable for AQA 9-1 GCSE, Edexcel 9-1 GCSE, Edexcel iGCSE and Cambridge iGCSE exam boards, among others. Clean modern design, easy to follow. Explains roles of follicle stimulating hormone, luteinising hormone, oestrogen and progesterone, the pituitary gland, ovaries and corpus luteum. I have a separate version for OCR Gateway GCSE science-that course has slightly different content.

Teaching AQA 9-1 GCSE photosynthesis is difficult: with its emphasis on the inverse square law and light intensity data, it’s different to other courses and standard worksheets that haven’t been targeted don’t cover these points. Two-page worksheet with answers targeted at AQA specifically, covering a range of common questions and problems. Questions consulted for research include 8464B1H 2018 Q3 and 2021 Q1 and 84652H 2021 Q7, which would make great follow-ups.

Two-page link-up-the-boxes worksheet and two-page written worksheet recapping definitions of community, habitat, ecosystem and biotic/abiotic factors, along with case study questions. For the OCR 9-1 biology twenty-first century science GCSE. The link-up-the-boxes worksheet is deliberately written to be very easy for students with low knowledge and confidence with ecology. The written worksheet covers biotic factors, quadrats, transects and competition, along with a calculation question and practice identifying types of habitat. Versions for colour and black and white printing and a mark scheme are included. Could also be suitable as a quick recap exercise for A-level students. These worksheets are very similar to my set for AQA, if you tutor multiple courses you don’t really need the other version.

This two-page resource lists pathogens, transmission routes, disease effects, treatment methods and other facts for human diseases on the OCR A-level biology A course. The large number of disease case studies on the course is something students need a lot of help with. A blank worksheet version is also included for students to fill in themselves. To help students build up a common sense knowledge of the kind of issues surrounding these diseases that could be important in future and likely topics of exam questions, there’s a section on “other things to know” explaining issues like malaria potentially being spread by global warming, and multi-drug resistant TB. That should make this set of notes particularly useful for students aiming high and looking to study medicine, nursing and biosciences degrees in future or getting ready for interviews. I’ve mentioned recent developments since the specification was published that would be worth knowing for interviews. I’ve had positive feedback from students who found it interesting and felt that it gave them a sense of issues in modern medicine-one student studying history A-level said it helped put studying AIDS in history in context.

This two-page resource lists pathogens, transmission routes, disease effects, treatment methods and other facts for the human diseases on the Cambridge International A-level biology course. The large number of disease case studies on the course is something students need a lot of help with. A blank worksheet version is also included for students to fill in themselves. To help students build up a common sense knowledge of the kind of issues surrounding these diseases that could be important in future and likely topics of exam questions, there’s a section on “other things to know” explaining issues like malaria potentially being spread by global warming. That should make this set of notes particularly useful for students aiming high and looking to study medicine, nursing and biosciences degrees in future or getting ready for interviews. Although flu is not one of the “official” case studies on the course, because it’s covered in the vaccination topic notes on it are also included. I’ve had positive feedback from students who found it interesting and felt that it gave them a sense of issues in modern medicine-one student studying history A-level said it really helped put studying AIDS in history in context.

Worksheet on homeostasis and thyroid function, covering thyroxine, TSH and homeostasis and negative feedback generally. This two-page worksheet has plenty of illustrations and diagrams to help students remember the topic and case-study questions. There’s an in-depth mark scheme and versions for colour and black and white printing. Targets the OCR twenty-first Century Science 9-1 GCSE Biology course. I also have versions for AQA GCSE biology and Edexcel GCSE biology.

Worksheet on two pages covering plant disease for the AQA 9-1 biology GCSE specification. Topics include tobacco mosaic virus, Agrobacterium tumefaciens and rose black spot, as well as one calculation practice. Level is fairly basic, without many complicated questions. Versions of the worksheet are included for colour and black and white printing. Pictures, diagrams and mark scheme are included.

Two-page link-up-the-boxes worksheet and two-page written worksheet recapping definitions of community, habitat, ecosystem and biotic/abiotic factors, along with case study questions. For the AQA 9-1 biology GCSEs: based on collating past paper questions I’ve found the definitions of the terms are important for students to know, but suitable for other courses. The link-up-the-boxes worksheet is deliberately written to be very easy for students with low knowledge and confidence. The written worksheet covers biotic factors, quadrats, transects and competition, along with a calculation question and practice identifying types of habitat. Versions for colour and black and white printing and a mark scheme are included. Could also be suitable as a quick recap exercise for A-level students.

You get a much better response explaining cyclic AMP when you draw it as a hat that makes enzymes happy and working harder when they wear it! One-page revision notes on cAMP for the OCR specification, combining the different places it’s used on the course (adrenaline receptors, ADH in the kidney collecting duct, lac operon of bacteria). Also has links to YouTube videos of some of the processes discussed. I’m thinking of expanding this into a larger resource covering this topic-contact me if that’s something you’d particularly want. It’s offered for free in the meantime.

A famous painting proves a jumping-off point for examining ecology and national heritage in this worksheet for students applying to study biology, environmental sciences and geography at university. There’s two formats: a worksheet for students to take home, but also if you want to replicate the format of a university interview with an interviewer posing questions, a sheet containing the painting to show the student as stimulus material and a set of questions and answers for the interviewer, with some possible extra hints if the student’s struggling. There’s questions about experiment design and statistical test to choose too. On a difficulty scale, I’d put this as about a three out of five: it’s an interesting case study with a nice, evocative stimulus material to get students thinking, but doesn’t really go beyond the A-level courses.

You get a much better response explaining cyclic AMP when you draw it as a hat that makes enzymes happy when they wear it! One-page revision notes on cAMP for the AQA specification, with links to YouTube videos of some of the processes discussed. I am thinking of expanding this into a more full set of notes including details of the adrenaline receptor and with more diagrams-please comment if that’s something you’d want. It’s offered for free in the meantime.