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How do different temperatures (15°C, 20°C, 25°C, 30°C, 35°C) and light intensities (30%, 40%, 50%, 60%, 70%) affect oxygen production during photosynthesis in aquatic plants?e
Biology
IA
4
SL
Pro
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?
Biology
IA
5
HL
Pro
What are the effects of increasing the concentration of coffee grounds (0%, 5%, 10%, 15%, 20%) in the soil on providing an optimal environment for the growth of Vigna radiata in 7 days?
Biology
IA
5
HL
Pro
To what extent do fruit juices with differing pH levels (1.8, 3.2, 4.2, 5.2, 7) prevent the growth of microbial growth on Plain/White bread?
Biology
IA
4
HL
What is the effect of different concentrations of Copper (II) sulphate solution (0 mol/L, 0.05 mol/L, 0.2 mol/L, 0.4 mol/L, 0.6 mol/L, 0.8 mol/L and 1 mol/L) on the decomposition of Hydrogen peroxide catalysed by catalase enzymes as measured by the volume of Oxygen gas produced?
Biology
IA
4
HL
Pro
What are the differences in the composition of photosynthetic pigments among different species of the Miconia genus (Miconia lacera, Miconia crenata, Miconia mayeta, and Miconia calvescens), as revealed by paper chromatography and absorption spectrum at wavelengths 450nm, 500nm, 550nm, 570nm, 600nm, and 650nm?
Biology
IA
4
HL
Pro
How do varying concentrations of lead nitrate (0 mol/dm3, 0.1 mol/dm3, 0.2 mol/dm3, 0.3 mol/dm3, 0.4 mol/dm3 and 0.5 mol/dm3) affect the rate of enzyme activity of liver catalase in the decomposition of hydrogen peroxide, by measuring the amount of oxygen produced in 2 minutes using a gas syringe?
Biology
IA
6
HL
Pro
To what extent does the percentage cover of Padina algae (Padina pavonica) differ between a more undisturbed and and disturbed intertidal ecosystem in Malina Beach, Tioman
Biology
IA
4
HL
Pro
Investigating the effect of L-ascorbic acid concentration on the rate of catalase activity in potatoes
Biology
IA
3
HL
How does Salinity Concentration (in percentage) Affect Average Growth Rate (grams/day) of Mung Bean Species?
Biology
IA
4
HL