
How to study IB Biology: 5 essential tips
Learn how to study IB Biology effectively with 5 essential tips from an expert tutor. Master diagrams, vocabulary, and linking topics for successful revision.
Every group of subjects in the IB has its own set of challenges, and no one strategy will fit every class. So this week, let’s talk about the essentials for studying good ol’ Biology during the IB!
1. Draw diagrams
One of the benefits of studying biology is that most topics we learn are tangible – which means we can easily visualise it using a diagram! Avoid the hassle of writing long-winded descriptive paragraphs and trust in the knowledge that a picture tells a thousand words. Don’t worry if you’re not the best at drawing – it’s not the exact proportions or artistry of your diagram that will make you a biology whiz, but your understanding of how a biological structure works, and where all the moving parts fit together.
2. Use different colours
To become a true master of diagrams, you need to make full use of colour in your drawings. Again, the goal here is not realism, but clarity – using more than one colour helps you pick out the different parts, which is important in biology because lots of things tend to overlap in a small space. Keep in mind that this is for studying purposes only – you can’t add colours in the exam! You can also colour-code your written notes to make it easier to find what you’re looking for when you’re reviewing for a test.
3. Flashcards
At this point, you may have realised how vocabulary-heavy biology is – every topic we learn, there are a totally new set of words to cram into our heads! Not only do these words count towards a lot of points on tests, but getting used to them can take your understanding to the next level. Flashcards make the sea of new words more manageable, and you can use them in various ways to keep things fresh – on your own, with a friend, even when you’re in between places and don’t have the space to take out your other notes!
4. Linking relevant sections together
Try not to study biology in a vacuum – each topic is meant to build off of the others that came before it, and you can and should use this to your advantage – as we know, time can be scarce in the IB! Save your time and effort by continuously linking back to things you’ve covered before in earlier chapters – these links will strengthen your understanding of both old and new information. It’s also beneficial to visualise these links in your notes – leave space in the margins for tips to your future revision self about which other sections of the syllabus you should refer to!
5. Get comfortable with the detail-heavy topics
So you’re a master diagram maker, a flashcard connoisseur, and a linking genius – now what? The most important thing in biology is to understand the big picture – but in order to tie it all together, you need to get comfortable with the fine details. Focus your revision on the detail-oriented sections (HL: Topics 7, 8, 11 and SL: Topics 2, 6). That is not to say the rest of the syllabus is unimportant, but IB exams do focus more heavily on the topics we’ve mentioned here, if only because there are simply more questions to ask.
There’s a lot of work that goes into excelling in the IB, but if you stick with these five essentials, you’ll have your biology course sorted!

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Diagrams are incredibly effective for visualising complex biological concepts. By drawing and using different colours, you can clarify structures, processes, and relationships, making it easier to understand and recall information without lengthy descriptions. It's about understanding how parts work together, not artistic skill.
IB Biology is very vocabulary-heavy. Flashcards are a highly effective tool for memorising the vast number of new terms, definitions, and concepts. Consistent use helps you internalise the language of biology, which is crucial for both understanding and scoring well in exams.
IB Biology topics are interconnected. Actively linking new information to previously learned concepts strengthens your overall understanding and makes revision more efficient. Make notes in your margins or create mind maps to visualise these connections, reinforcing both old and new material.
While all topics are important, the IB exams often place a heavier emphasis on detail-oriented sections. For HL, these include Topics 7, 8, and 11. For SL, Topics 2 and 6 are particularly detail-heavy. Mastering these specific areas can significantly boost your exam performance.
Lanterna provides expert IB Biology tutors who can offer personalised strategies tailored to your learning style and specific challenges. Whether it's mastering complex concepts, refining diagramming skills, preparing for IAs, or excelling in exams, our tutors help you build confidence and achieve higher grades.
Absolutely. Our IB Biology tutors are all high-achieving IB graduates (many 40+ scorers), experienced teachers, or even examiners. They have deep expertise in the IB Biology syllabus for both SL and HL, including IA criteria and exam expectations, ensuring you get relevant and effective support.
The Lanterna free IB consultation is a no-pressure, 20-30 minute session with an IB Student Success Expert. It's designed to help you (or your child) get clarity on your current IB situation, discuss challenges in subjects like Biology, and receive a personalised plan for what to focus on next.
Yes, it is genuinely 100% free with no obligation to book tutoring. Our goal is to provide immediate value by helping you understand your IB journey better. You'll walk away with actionable insights and a clear plan, regardless of whether you choose to pursue tutoring with us.
Our Student Success Experts are highly experienced professionals with deep knowledge of the IB programme. They can help you identify specific areas for improvement in IB Biology, discuss effective study techniques, and outline a strategy to maximise your potential, drawing on the collective experience of thousands of IB students.
Yes, absolutely. During your free consultation, our Student Success Experts can help you outline a personalised study plan for IB Biology, identifying key areas to focus on, effective revision techniques, and how to integrate strategies like diagramming and flashcards into your routine.
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