Select an option
Investigating specimens using microscopes
Investigating the effect of antimicrobials
Investigating osmosis in potatoes
Investigating the effect of pH on amylase activity
Investigating molecules in food using food tests
Investigating limiting factors of photosynthesis
Investigating human reaction times
Investigating seed growth under different conditions
Using field-work techniques
Investigating the effect of temperature on decay
Ecosystems, competition and environmental changes
Adaptations and extremophiles
Food chains and predator-prey graphs
The water cycle
The carbon cycle
Decomposition and biogas
Human impacts on biodiversity
Global warming and its consequences
Conservation and maintaining biodiversity
Trophic levels and biomass transfer
Food security and biotechnology
DNA: structure, genes and chromosomes
Protein synthesis - Higher
Proteins and mutations
Meiosis, sexual and asexual reproduction
Sexual and asexual reproduction
Inheritance and genetic diagrams
Inherited disorders
Types and sources of variation
Evolution by natural selection
Evolution: Darwin, Lamarck and Wallace
Antibiotic resistance: causes and prevention
Selective breeding
Uses and evaluation of genetic engineering
The process of genetic engineering - Higher
Cloning in plants and animals
Fossils as evidence for evolution
The theory of speciation
Classifying living organisms
Homeostasis and blood glucose
The nervous system and the reflex arc
The structure of the brain
The eye: structure, reflexes and defects
Controlling body temperature
The human endocrine system
Hormones: adrenaline and thyroxine - Higher
The urinary system
Hormones in human reproduction
Treating infertility - Higher
Plant hormones
Cell organisation
Enzymes
The enzymes of the digestive system
The respiratory system and breathing rate
Human circulatory system
Cardiovascular disease and treatment
The relationship between health and disease
Non-communicable diseases
Cancer and its risk factors
Plant cell organisation
Water and mineral transport in plants
The phloem tubes transport the glucose that is made during photosynthesis away from the leaf.
One adaptation of leaves are their palisade mesophyll cells that are located at the top of the leaf and they contain lots of chloroplasts which maximises photosynthesis.
Plants that live in waterlogged soil may struggle to respire as these conditions have reduced oxygen given the lack of air spaces in the soil. To overcome this they have spongy tissue in their roots that stores oxygen.
Plants that live in tropical conditions need to adapt to wet and darker conditions. They may have larger leaves in order to get as much light as possible for photosynthesis. They may also have 'drip tips' which are leaves with pointed tips. These allow water to run off the leaf.
Beta