IB Biology HL - 2024
Questionbank

Topic 2 All

All Questions in Topic 2 Molecular Biology

2.1 - Molecules to Metabolism

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

2.2 - Water

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

2.3 - Carbohydrates & Lipids

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

2.4 - Proteins

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

2.5 - Enzymes

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

2.6 - Structure of DNA & RNA

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

2.7 - DNA Replication, Transcription, & Translation

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

2.8 - Cell Respiration

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

2.9 - Photosynthesis

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

Topic 4 All

All Questions in Topic 4 Ecology

4.1 - Species, Communities, and Ecosystems

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

4.2 - Energy Flow

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

4.3 - Carbon Cycling

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

4.4 - Climate Change

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

Topic 6 All

All Questions in Topic 6 Human Physiology

6.1 - Digestive System

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

6.2 - Circulatory System

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

6.3 - Immune System

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

6.4 - Respiratory System

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

6.5 - Neuronal System

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

6.6 - Endocrine & Reproductive Systems

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

Topic 8 All

All Questions in Topic 8 Metabolism, Cell Respiration & Photosynthesis

8.1 - Control of Metabolism

Pathways, Activation Energy, End-Product, Competitive & Non-Competitive Inhibition, Anti-Malarials, Rate of Reaction

8.2 - Details of Cell Respiration

Oxidation & Reduction, E-carriers, Glycolysis, Link Reaction, Krebs cycle, ETC, ATP Synthesis, Mitochondrion, Tomography

8.3 - Details of Photosynthesis

Light-Dependent/Independent Reactions, Photosystem I & II, Photolysis, ATP Synthesis, Chloroplast, NADP, Rubisco, Calvin

Topic 10 All

All Questions in Topic 10 Genetics & Evolution

10.1 - Causes of Variation in Meiosis

Crossing Over, Chiasmata, Independent Assortment, Random Orientation

10.2 - Dihybrid Crosses & Linked Genes

Linked Genes, Discrete & Continuous Variation, Polygenic Traits, Chi-squared, Morgan, Dihybrid Crosses, Recombinants

10.3 - Gene Pools & Speciation

Allele Frequency, Selection Types, Reproductive Isolation, Speciation, Gradualism & Punctuated Equilibrium, Polyploidy

Option C All

All Questions in Option C Ecology & Conservation

C.1 - Species & Communities

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

C.2 - Communities & Ecosystems

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

C.3 - Impacts of Humans on Ecosystems

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

C.4 - Conservation of Biodiversity

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

C.5 - Population Ecology

Sampling Techniques, Growth Curve & Carrying Capacity of Populations, Limiting Factors

C.6 - Nitrogen & Phosphorus Cycles

Role of Bacteria in the Nitrogen Cycle, Agriculture and the Phosphorus Cycle, N vs P Cycle, Eutrophication