DP Biology SL Paper 1 – First Assessment 2025
SL Paper 1
- Duration: 1 hour and 30 minutes
- Paper 1 is presented as two separate booklets.
- Paper 1A 30 marks
- 30 multiple-choice questions on standard level material only
- No marks are deducted for incorrect answers.
- Paper 1B 25 marks
- Four data-based questions related to experimental work and the syllabus.
- CALCULATOR ALLOWED
- Data booklet provided
- 36 % weight
- Marks: 55
SL Paper 2
- Duration: 1 hour and 30 minutes
- Weighting: 44%
- Marks: 50
- Section A : 34 marks
- Data-based question.
- Short-answer questions on standard level material.
- Section B: 16 marks
- Extended-response questions on standard level material.
One of two extended-response questions to be attempted by candidates.
- Extended-response questions on standard level material.
- CALCULATOR ALLOWED
- Data booklet provided
A. Unity and diversity
- 1. Molecules
- 2. Cells
- A2.1 Origins of cells [HL only]
- A2.2 Cell structure
- A2.3 Viruses [HL only]
- 3. Organisms
- A3.1 Diversity of organisms
- A3.2 Classification and cladistics [HL only]
- 4. Ecosystems
B. Form and function
- 1. Molecules
- 2. Cells
- 3. Organisms
- B3.1 Gas exchange
- B3.2 Transport
- B3.3 Muscle and motility [HL only]
- 4. Ecosystems
C. Interaction and interdependence
- 1. Molecules
- 2. Cells
- C2.1 Chemical signaling [HL only]
- C2.2 Neural signaling
- 3. Organisms
- 4. Ecosystems
D. Continuity and change
- 1. Molecules
- 2. Cells
- D2.1 Cell and nuclear division
- D2.2 Gene expression [HL only]
- D2.3 Water potential
- 3. Organisms
- 4. Ecosystems
DP Biology SL Paper 2 – First Assessment 2025
A. Unity and diversity
- 1. Molecules
- 2. Cells
- A2.1 Origins of cells [HL only]
- A2.2 Cell structure
- A2.3 Viruses [HL only]
- 3. Organisms
- A3.1 Diversity of organisms
- A3.2 Classification and cladistics [HL only]
- 4. Ecosystems
B. Form and function
- 1. Molecules
- 2. Cells
- 3. Organisms
- B3.1 Gas exchange
- B3.2 Transport
- B3.3 Muscle and motility [HL only]
- 4. Ecosystems
C. Interaction and interdependence
- 1. Molecules
- 2. Cells
- C2.1 Chemical signaling [HL only]
- C2.2 Neural signaling
- 3. Organisms
- 4. Ecosystems
D. Continuity and change
- 1. Molecules
- 2. Cells
- D2.1 Cell and nuclear division
- D2.2 Gene expression [HL only]
- D2.3 Water potential
- 3. Organisms
- 4. Ecosystems
Here are some steps you can follow to prepare effectively:
Study the syllabus: Make sure you understand the topics that are covered in the IB DP physics syllabus. This will give you a clear idea of what to expect on the exams.
Review class notes and textbooks: Regularly review your class notes and textbooks to reinforce your understanding of the material.
Practice, practice, practice: Practice solving physics problems as much as possible. Try to work through as many practice questions and Mock tests as you can find here at iitianacademy.com . This will help you get a feel for the types of questions you can expect on the exams and build your problem-solving skills.
Seek help when needed: If you’re struggling with a particular concept, don’t hesitate to ask your teacher or a tutor for help.
Stay organized: Make sure to keep track of important formulas, equations, and concepts so you can easily reference them when you need to.
Stay up-to-date on current events in physics: Being knowledgeable about current developments in physics can help you better understand the applications of the concepts you are learning.