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IB Biology SL - 2024 - Questionbank

The IB Biology SL (Standard Level) 2024 Questionbank is a great source of practice questions, coming from the entire syllabus! Each question comes with a clear markscheme and solution video, with an experienced IB teacher going through the question step-by-step. The questions are organized by topic and arranged by difficulty, making it the perfect resource for studying a particular concept.

Topic 1

Cell Biology

Topic 1 All

All Questions in Topic 1 Cell Biology

1.1 - Stem Cells, Cell Theory, & Microscopy

Functions of Life, Cell Theory & Exceptions, Differentiation, Stem Cells, SA:V, Magnification, Stargardt's Disease

1.2 - Ultrastructure of Eukaryotes & Prokaryotes

Cell Ultrastructure, Prokaryotic & Eukaryotic cells, Functions of Organelles, Binary Fission, Micrographs, Microscopes

1.3 - Membrane Structure

Plasma Membrane Structure & Function, Amphipathic Properties, Cholesterol, Davson-Danielli & Singer-Nicolson models

1.4 - Membrane Transport

Osmosis, Passive & Active Transport, Endocytosis, Exocytosis, Sodium/Potassium pump, Osmolarity Experiments

1.5 - The Origin of Cells

Origin of Cells, Universal code, Endosymbiotic theory, Pasteur and Spontaneous Generation

1.6 - Cell Division

Mitosis, Interphase, Cytokinesis, Cyclins, Supercoiling, Mutagens & Oncogenes, Smoking & Cancer, Mitotic Index

Topic 2

Molecular Biology

Topic 2 All

All Questions in Topic 2 Molecular Biology

RV FREE

2.1 - Molecules to Metabolism

Carbon Tetravalency, Biomolecules, Metabolism, Anabolism, Catabolism, Hydrolysis of Macromolecules, Monomers & Polymers

RV FREE

2.2 - Water

Polarity, Hydrogen Bonding, Adhesion, Cohesion, Thermal Properties, Hydrophilic & Hydrophobic, Transport of Substances

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2.3 - Carbohydrates & Lipids

Carbohydrate & Lipid Structures & Functions, Condensation & Hydrolysis, BMI, Nomograms, Lipids & Health, Energy Storage

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2.4 - Proteins

Protein Structure & Functions, Peptide Bond, Condensation & Hydrolysis, pH and Temperature, Proteomics

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2.5 - Enzymes

Enzyme Structure & Function, Active Site, Enzyme Activity Experiments, Denaturation, Immobilization, Lactose-Free Milk

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2.6 - Structure of DNA & RNA

DNA & RNA Structure, Complementarity, Watson & Crick, Nucleotide structure, Antiparallel nature

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2.7 - DNA Replication, Transcription, & Translation

Replication, Complementarity, Transcription, Translation, Codons, Meselson & Stahl, Taq Polymerase, Genetic Code

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2.8 - Cell Respiration

Aerobic & Anaerobic Respiration, ATP, Lactic Acid Fermentation, Alcohol Fermentation, Respirometer Experiments

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2.9 - Photosynthesis

Light, Pigments, Photosynthesis, Photolysis, Chromatography, Limiting Factors Experiment, Absorption & Action Spectrum

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Topic 3

Genetics

Topic 3 All

All Questions in Topic 3 Genetics

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3.1 - Genes, Alleles, and Genomes

Genes, Locus, Alleles, Mutation, Genome, Human Genome Project, Sickle Cell Anaemia, Genbank

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3.2 - Chromosomes

Plasmid, Histone, Homologous, Haploid & Diploid, Karyotype, Autosomes & Sex Chromosomes, Autoradiography, Down, BLAST

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3.3 - Meiosis

Crossing Over, Meiosis I & II, Gametes, Genetic Variation, Non-Disjunction, Chorionic Villi Sampling, Amniocentesis

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3.4 - Inheritance

Mendel, Zygote, Dominant & Recessive, Co-dominant, Diseases, Sex-linkage, Mutagens, ABO groups, Punnett Grid, Pedigree

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3.5 - Genetic Modification & Biotechnology

Gel Electrophoresis, PCR, DNA Profiling, Cloning, Genetic Modification, GMO, Rooting Experiment, Bt Crops

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Topic 4

Ecology

Topic 4 All

All Questions in Topic 4 Ecology

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4.1 - Species, Communities, and Ecosystems

Populations, Autotroph & Heterotroph, Consumer, Detritivore & Saprotroph, Mesocosm, Chi-squared Test, Quadrat Sampling

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4.2 - Energy Flow

Light Energy, Chemical Energy, Biomass, Energy Loss, Trophic Levels, Pyramid of Energy, Energy Flow and Nutrient Cycling

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4.3 - Carbon Cycling

Carbon Dioxide, Carbon Cycle, Methane, Peat, Coal, Oil & Gas, Fossils, Corals, Limestone, Air Monitoring, Carbon Fluxes

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4.4 - Climate Change

Greenhouse Gases, Long-Wave Radiation, Global Temperature & Climate, Coral Reefs, the Precautionary Principle

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Topic 5

Evolution & Biodiversity

Topic 5 All

All Questions in Topic 5 Evolution & Biodiversity

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5.1 - Evidence for Evolution

Fossil Record, Selective Breeding, Homologous Structures, Gradual Divergence, Continuous Variation, Melanism

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5.2 - Natural Selection

Natural Selection, Sources of Variation, Adaptations, Finches, Antibiotic Resistance

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5.3 - Classification & Biodiversity

Binomial System, Taxonomy, Domains, Kingdoms, Reclassification, Plant & Animal Phyla, Chordata Classes, Dichotomous Key

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5.4 - Cladistics

Clade, Cladograms, Analogous & Homologous Traits, Figwort Reclassification

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Topic 6

Human Physiology

Topic 6 All

All Questions in Topic 6 Human Physiology

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6.1 - Digestive System

Peristalsis, Villi, Nutrient Absorption, Digestion of Starch, Dialysis Tubing, Digestive System Anatomy, Enzymes

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6.2 - Circulatory System

Arteries, Veins, Capillaries, Pressure, Pacemaker, Heart Structure & Regulation, Harvey, Cardiac Cycle, Occlusion

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6.3 - Immune System

Pathogens, Blood Clotting, Antibodies, Antigens, Antibiotics, Florey & Chain's Experiment, HIV, Phagocytes, Lymphocytes

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6.4 - Respiratory System

Gas Exchange, Respiratory Anatomy, Pneumocytes, Diaphragm, Intercostal Muscles, Lung Cancer, Emphysema, Spirometer

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6.5 - Neuronal System

Threshold, Action & Resting Potentials, Neurons, Myelination, Synapses, Neurotransmitters, Neonicotinoids, Oscilloscopes

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6.6 - Endocrine & Reproductive Systems

Glands, Insulin, Glucagon, Thyroxin, Leptin, Melatonin, Sex Hormones & Menstrual Cycle, Diabetes, IVF, Anatomy, Harvey

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Option C

Ecology & Conservation

Option C All

All Questions in Option C Ecology & Conservation

RV GOLD

C.1 - Species & Communities

Distribution of Species, Keystone Species, Position in Community, Interactions, Competition within the Habitat

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C.2 - Communities & Ecosystems

Trophic Levels, Food Chains & Webs, Energy to Biomass, Climate & Disturbance Affects on Ecosystems, Closed Ecosystems

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C.3 - Impacts of Humans on Ecosystems

Alien & Invasive Species, Biomagnification of Pollutants, Micro- and Macroplastics in Oceans

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C.4 - Conservation of Biodiversity

Uses of Indicator Species, Conservation, Factors Affecting Biodiversity, Components of Biodiversity

RV GOLD

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More IB Biology SL - 2024 Resources

New

Questionbank

All the questions you could need! Sorted by topic and arranged by difficulty, with mark schemes and video solutions for every question.

New

Practice Exams

Choose your revision tool! Contains topic quizzes for focused study, Revision Village mock exams covering the whole syllabus, and the revision ladder to precisely target your learning.

Coming Soon

Key Concepts

Helpful refreshers summarizing exactly what you need to know about the most important concepts covered in the course.

Past Papers

Full worked solutions to all past paper questions, taught by experienced IB instructors.

Frequently Asked Questions

The IB Biology SL Questionbank is a comprehensive set of IB Biology exam style questions, categorised into syllabus topic and concept, and sorted by difficulty of question. The bank of exam style questions are accompanied by high quality step-by-step marksBioes and video tutorials, taught by experienced IB Biology teachers. The IB Biology SL Question bank is the perfect exam revision resource for IB students looking to practice IB Biology exam style questions in a particular topic or concept in their IB Biology Standard Level course.

The IB Biology SL Questionbank is designed to help IB students practice Biology SL exam style questions in a specific topic or concept. Therefore, a good place to start is by identifying a concept that you would like to practice and improve in and go to that area of the Biology SL Question bank. For example, if you want to practice Biology SL exam style questions covering Cell Division, you can go to Biology SL Topic 1 (Cell Biology) and go to the Cell Division area of the question bank. On this page there is a carefully designed set of IB Biology SL exam style questions, progressing in order of difficulty from easiest to hardest. If you’re just getting started with your revision, you could start at the top of the page with the easiest questions, or if you already have some confidence, you could start at the medium difficulty questions and progress down.

The Biology SL Questionbank is perfect for revising a particular topic or concept, in-depth. For example, if you wanted to improve your knowledge of Cell Division, there are over 20 IB Biology SL exam style questions focused specifically on this concept. Alternatively, Revision Village also has an extensive library of Biology SL Practice Exams, where students can simulate the length and difficulty of an IB exam with the Mock Exam sets, as well as Biology SL Key Concepts, where students can learn and revise the underlying theory, if missed or misunderstood in class.

With an extensive and growing library of full length IB Biology SL exam style questions in the Biology SL Question bank, finishing all of the questions would be a fantastic effort, and you will be in a great position for your final exams. If you were able to complete all the questions in the Biology SL Question bank, then a popular option would be to go to the Biology SL Practice Exams section on Revision Village and test yourself with the Mock Exam Papers, to simulate the length and difficulty of an actual IB Biology SL exam.