IB Biology SL Question Bank Topic Wise Paper 1A
(First Assessment 2025)

IB Biology SL Paper 1A Topic Wise Question Bank

A. UNITY AND DIVERSITY

A1.1. Water QP

A1.1. Water MS

A2.1. Origins of Cells QP

A2.1. Origins of Cells MS

A3.1. Diversity of Organisms QP

A3.1. Diversity of Organisms MS

A4.1. Evaluation And Speciation QP

A4.1. Evaluation And Speciation MS

A1.2. Nucleic Acids QP

A1.2. Nucleic Acids MS

A2.2. Cell Structure QP

A2.2. Cell Structure MS

A3.2. Clasification And Cladistics QP

A3.2. Clasification And Cladistics MS

A4.2. Conservation of Biodiversity QP

A4.2. Conservation of Biodiversity MS

B. FORM AND FUNCTION

B1.1. Carbohydrates And Lipids QP

B1.1. Carbohydrates And Lipids MS

B2.1. Membranes And Membrane Transport QP

B2.1. Membranes And Membrane Transport MS

B2.3. Cell Specialization QP

B2.3. Cell Specialization MS

B3.2. Transport QP

B3.2. Transport MS

B4.2. Ecological Niches QP

B4.2. Ecological Niches MS

B1.2. Proteins QP

B1.2. Proteins MS

B2.2. Organelles And Compartmentalization QP

B2.2. Organelles And Compartmentalization MS

B3.1 Gas Exchange QP

B3.1 Gas Exchange MS

B4.1. Adaptation To Environment QP

B4.1. Adaptation To Environment MS

C. INTERRACTION AND INTERDEPENDENCE

C1.1. Enzymes And Metabolism QP

C1.1. Enzymes And Metabolism MS

C1.3. Photosynthesis QP

C1.3. Photosynthesis MS

C2.2. Neural Signalling QP

C2.2. Neural Signalling MS

C3.2. Defence Against Disease QP

C3.2. Defence Against Disease MS

C4.2. Transfers of Energy And Matter QP

C4.2. Transfers of Energy And Matter MS

C1.2. Cell Respiration QP

C1.2. Cell Respiration MS

C2.1. Chemical Signalling QP

C2.1. Chemical Signalling MS

C3.1. Integration of body System QP

C3.1. Integration of body System MS

C4.1. Population And Communities QP

C4.1. Population And Communities MS

D. COUNTINUTY AND CHANGE

D1.1. DNA Replication QP

D1.1. DNA Replication MS

D.2.3. Water Potential QP

D.2.3. Water Potential MS

D.3.1. Reproduction QP

D.3.1. Reproduction MS

D3.3. Homeostasis QP

D3.3. Homeostasis MS

D4.2. Stability And Change QP

D4.2. Stability And Change MS

D1.2. Protein Synthesis QP

D1.2. Protein Synthesis MS

D2.1. Cell And Nuclear Division QP

D2.1. Cell And Nuclear Division MS

D.3.2. Inheritance QP

D.3.2. Inheritance MS

D4.1. Natural Selection QP

D4.1. Natural Selection MS

D.4.3. Climate Change QP

D.4.3. Climate Change MS