Revision Genie
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Characteristics of Living Organisms

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Concept and Uses of Classification Systems

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Features of Organisms

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Cell Structure

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Size of Specimens

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Diffusion

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Osmosis

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Active Transport

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Chemical Elements in Molecules

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Large Molecules from Smaller Units

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Food Tests

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Structure of DNA

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Role of Enzymes

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Enzyme Action

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Factors Affecting Enzyme Activity

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Photosynthesis Process

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Leaf Structure and Adaptations

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Limiting Factors of Photosynthesis

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Balanced Diet

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Digestive System Organs

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Physical Digestion

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Chemical Digestion

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Absorption in Small Intestine

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Xylem and Phloem Functions

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Water Uptake and Pathways

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Transpiration Process

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Translocation in Plants

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Circulatory Systems

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Structure and Function of the Heart

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Blood Vessels

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Components of Blood

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Pathogens and Transmission

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Body Defences

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Active and Passive Immunity

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Vaccination

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Features of Gas Exchange Surfaces

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Breathing System Structure

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Inspired and Expired Air Composition

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Effects of Physical Activity on Breathing

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Uses of Energy in Organisms

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Aerobic Respiration

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Anaerobic Respiration

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Excretory Products and Organs

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Structure of the Kidney

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Role of the Liver in Excretion

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Deamination and Urea Formation

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Nervous System Structure

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Reflex Actions

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Synapses and Neurotransmitters

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Effects of Drugs on the Body

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Medicinal and Recreational Drugs

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Drug Abuse and Health Risks

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Asexual and Sexual Reproduction

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Reproductive Systems in Humans

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Fertilisation and Development

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Pollination and Seed Dispersal

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DNA and Genes

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Monohybrid Inheritance

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Variation and Mutation

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Types of Variation

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Natural Selection

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Selective Breeding

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Ecosystems and Food Chains

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Energy Flow in Ecosystems

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Nutrient Cycles

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Pollution and Its Effects

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Conservation of Resources

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Sustainable Development

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Uses of Microorganisms

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Genetic Engineering Techniques

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Applications of Genetic Modification

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