What are Biology examples?

Biology examples are high-quality student coursework samples from Biology that have been verified and scored by IB examiners. These examples include Internal Assessments (IA), Extended Essays (EE), and other assessed work.

How are these examples verified?

All examples in our collection have been verified with scores by qualified IB examiners, ensuring they represent authentic, high-quality student work that meets IB assessment standards.

What types of Biology coursework are included?

Our Biology example collection includes Internal Assessments (IA), Extended Essays (EE), and other assessed components specific to Biology.

Biology Examples

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The Coursework Examples section gives IB students (both SL and HL) access to real, high-quality samples of IB Biology Internal Assessments (IA) and Extended Essays (EE). Each example is carefully selected to model top-scoring work, aligned with IB assessment rubrics and showcasing what examiners expect at different achievement levels.

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How do different temperatures (13°C, 21°C, 29°C, 37°C, 45°C, 53°C, 61°C, 69°C, 77°C; ±0.5 °C) affect the lactase enzymatic activity in cow’s milk determined by the glucose levels (mmol L-1) after a 15 minute incubation period using a blood glucose meter?

An Investigation on the Effect of Fluoride Concentration on Enamel Remineralization

How does varying the concentration of pomegranate (Punica granatum) juice (0%, 20%, 40%, 60%, 80%, 100%) affect α-amylase activity, as measured by, using a colorimeter, the absorbance at 680nm after 1.5 minutes of hydrolysis of starch under constant conditions (pH 7 and 35°C)?

To what extent does the mass of green tea (Camellia sinensis) leaves (1g, 1.5g, 2g, 2.5g, and 3g), affect the rate of amylase-catalyzed starch hydrolysis, measured by the change in absorbance of starch-iodine complex using a spectrophotometer at 615nm over 10 minutes?

How do different concentrations (0.0, 0.1, 0.5 and 50 mM) of glucose affect the germination rate of wheat seeds (Triticum aestivum) under salinity stress (200 mM NaCl) over 5 days?

To what extent do serial dilutions of an aqueous Mangifera indica L. extract (v/v %, 0%, 25%, 50%, 75%, 100%) affect the growth rate of Saccharomyces cerevisiae cells under ethanol-induced oxidative stress as measured using optical density (OD) at 635nm, over a 6h period?

¿Cómo afecta la exposición durante dos minutos a música rock y electrónica en la frecuencia cardíaca promedio (bpm) de estudiantes del primer año del Bachillerato Internacional de la Unidad Educativa JLM “La Salle”, en comparación con su frecuencia cardíaca basal en reposo?

What is the effect of different concentrations of ammonium chloride (0.00 M control , 0.10 M, 0.20 M,0.30 M, 0.40 M, and 0.50 M ± 0.01 mol dm-3) on the average daily stem growth rate (cm day-1±0.1 cm ) of Phaseolus vulgaris seedlings over an 8-day period (Days 4-11 post planting )?

HOW DO DIFFERENT CONCENTRATION OF MICROPLASTIC (20 mg/L, 40 mg/L, 60 mg/L, 80 mg/L, 100 mg/L) IN WATER AFFECT GROWTH RATE OF Hydrilla ver cillata BY MEASURING THE CHANGES IN LENGTH AND TOTAL CHLOROPHYLL CONTENT AFTER 7 DAYS

Is there a relationship between the abundance of sea lettuce (Ulva lactuca) (categorized by SACFOR) and the density of common limpets (Patella vulgata) in a marine environment at Helwell Bay?

To what extent does a high ultra-processed food diet affect the cognitive development of the foetus in Homo sapiens as measured using early-year cognitive tests?

La durabilité économique et environnementale de la pêche du thon rouge dans les écosystèmes marins méditerranéens

What is the substrate type's (Glucose, Fructose, Galactose, Sucrose, Maltose, Starch) effect on the rate (ppm/min) of respiration in yeast (Saccharomyces cerevisiae), as measured by the change in CO2 concentration (ppm) over 600 seconds?

What is the effect of varying ethanol concentration (0%, 5%, 10%, 15%, 20%, 25%) on the inhibition of α-amylase enzyme activity on starch in a solution, as measured by the time taken for the iodine-starch complex to disappear caused by an iodine-starch complex at room temperature (25°C)?

How does exposure to different temperatures (4°C, 25°C, 40°C, 60°C, and 80°C) for 5 minutes affect the vitamin C concentration in pineapple juice (Ananas comosus), measured by the volume of juice required to decolourise a fixed volume of DCPIP solution?

How does increasing the concentration of sodium chloride (NaCl) solutions from 0.0% to 4.0% affect the mass change of Solanum tuberosum tissue after a 24-hour immersion period?

Investigating how the color variety of Capsicum annuum ( green,light green, yellow, red and orange peppers ) affect their Vitamin C concentration as determined by the volume of juice required to decolorize 4.00 mL of 0.1 % DCPIP solution?

How fruit aging affects the temperature at which it experiences structural change

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