The Learning Process with
Ayushi. 
- Master the Fundamentals: Unlock a crystal-clear understanding of key topics for complete comprehension.
- Interactive Learning: Enjoy engaging sessions tailored to your needs.
- Learn Anywhere, Anytime: Access recorded sessions on your iPad or mobile for convenient review.
- Quiz Boost: Practice with quizzes aligned with the latest IB Biology syllabus.
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About IB Biology Exam
About IB Biology Exam
Available at standard (SL) and higher levels (HL). Students are assessed both externally and internally.The distinction between SL and HL is one of breadth and depth.
IB Biology Grades
There is no negative marking and no points are awarded for unanswered questions.
| IB Biology Grades | Definition | IB equivalency |
|---|---|---|
| A | 96-100 | 7 |
| A | 92-95.9 | 6 |
| A- | 84-91.9 | 5 |
| B+ | 76-83.9 | 4 |
| B | 68-75.9 | 3 |
| C | 60-67.9 | 2 |
| D | 52-59.9 | 1 |
| F | 0-51.9 |
IB Biology Exam Calculator Policy
You are allowed to use a four-function, scientific, or graphing calculator on the entire IB Biology Exam–including both the multiple-choice and free response sections.
External Assessment Overview
All students will only sit two external examinations.
Paper 1A consists of multiple-choice questions covering the full syllabus content.
Paper 1B features data-based questions related to all core themes within the syllabus.
Paper 2A presents data-based questions drawn from unfamiliar contexts, along with structured short-answer questions.
Paper 2B requires students to respond to extended-response questions that assess comprehensive understanding across the syllabus, including knowledge, concepts, skills, and critical thinking.
External Assessment Total Weightage
Paper 1- 36% & Paper 2- 44%
Internal Assessment Total Weightage : 20%
Course Curriculum
1 Water
2 Nucleic acids
3 Origins of cells [HL]
4 Cell structure
5 Viruses [HL]
6 Diversity of organisms
7 Classification and cladistics [HL]
8 Evolution and speciation
9 Conservation of biodiversity
1 Carbohydrates and lipids
2 Proteins
3 Membranes and membrane transport
4 Organelles and compartmentalization
5 Cell specialization
6 Gas exchange
7 Transport
8 Muscle and motility [HL]
9 Adaptation to environment
10 Ecological niches
1 Enzymes and metabolism
2 Cell respiration
3 Photosynthesis
4 Chemical signaling
5 Neural signaling
6 Integration of body systems
7 Defense against disease
8 Populations and communities
9 Transfers of energy and matter
1 DNA replication
2 Protein synthesis
3 Mutation and gene editing
4 Cell and nuclear division
5 Gene expression [HL]
6 Water potential
7 Reproduction
8 Inheritance
9 Homeostasis
10 Natural selection
11 Stability and change
12 Climate change
