GCSE Biology (Triple) AQA
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116 topics in 9 modules
☑️ Cell Biology 12 topics
- Cell Biology: Cells
- Cell Biology: Microscopy
- Cell Biology: Cell Differentiation and Specialisation
- Cell Biology: Chromosomes and Mitosis
- Cell Biology: Binary Fission
- Cell Biology: Culturing Microorganisms
- Cell Biology: Stem Cells
- Cell Biology: Diffusion
- Cell Biology: Osmosis
- Cell Biology: Active Transport
- Cell Biology: Exchange Surfaces
- Cell Biology: Exchanging Substances
☑️ Transport Systems 11 topics
- Transport Systems: The Role and Structure of the Human Circulatory System
- Transport Systems: Blood Components and Their Functions
- Transport Systems: The Role of Arteries, Veins, and Capillaries
- Transport Systems: The Human Heart and Its Functioning
- Transport Systems: The Process of Blood Clotting
- Transport Systems: Plant Xylem and Phloem and Their Roles in Transport
- Transport Systems: Transpiration in Plants and Its Role
- Transport Systems: Factors Affecting Rate of Transpiration
- Transport Systems: Active Transport in Cells
- Transport Systems: The Importance of Water and Ion Uptake in Plants
- Transport Systems: Homeostatic Control of Blood Glucose Levels and Kidney Functions
☑️ Organisation 16 topics
- Organisation: Cell Organisation
- Organisation: Enzymes
- Organisation: Digestion
- Organisation: Food Tests
- Organisation: The Lungs
- Circulatory System: The Heart
- Circulatory System: Blood Vessels
- Circulatory System: Blood
- Organisation: Cardiovascular Disease
- Organisation: Health and Disease
- Organisation: Risk Factors in Non-Communicable Diseases
- Organisation: Cancer
- Organisation: Plant Cell Organisation
- Organisation: Transpiration
- Organisation: Translocation
- Organisation: Stomata
☑️ Infection and Response 8 topics
- Infection and Response: Communicable Disease
- Infection and Response: Viral, Fungal and Protist Diseases
- Infection and Response: Bacterial Diseases and Preventing Disease
- Infection and Response: Fighting Disease
- Infection and Response: Fighting Disease - Vaccination and Drugs
- Infection and Response: Developing Drugs
- Infection and Response: Monoclonal Antibodies
- Infection and Response: Plant Diseases and Defences
☑️ Bioenergetics 6 topics
- Bioenergetics: Photosynthesis and Limiting Factors
- Bioenergetics: The Rate of Photosynthesis
- Bioenergetics: Respiration and Metabolism
- Bioenergetics: Aerobic Respiration
- Bioenergetics: Anaerobic Respiration
- Bioenergetics: Exercise
☑️ Homeostasis and Response 16 topics
- Homeostasis
- Homeostasis and Response: The Nervous System
- Homeostasis and Response: Synapses and Reflexes
- Homeostasis and Response: Investigating Reaction Time
- Homeostasis and Response: The Brain
- Homeostasis and Response: The Eye
- Homeostasis and Response: Correcting Vision Defects
- Homeostasis and Response: Controlling Body Temperature
- Homeostasis and Response: The Endocrine System
- Homeostasis and Response: Controlling Blood Glucose
- Homeostasis and Response: The Kidneys
- Homeostasis and Response: Puberty and the Menstrual Cycle
- Homeostasis and Response: Controlling Fertility
- Homeostasis and Response: Adrenaline and Thyroxine
- Homeostasis and Response: Plant Hormones
- Homeostasis and Response: Commercial Uses of Plant Hormones
☑️ Inheritance, Variation and Evolution 18 topics
- Inheritance, Variation and Evolution: DNA
- Structure of DNA and Protein Synthesis
- Inheritance, Variation and Evolution: Mutations
- Inheritance, Variation and Evolution: Reproduction
- Inheritance, Variation and Evolution: Meiosis
- Inheritance, Variation and Evolution: X and Y Chromosomes
- Inheritance, Variation and Evolution: Genetic Diagrams
- Inheritance, Variation and Evolution: Inherited Disorders
- Inheritance, Variation and Evolution: The Work of Mendel
- Inheritance, Variation and Evolution: Variation
- Inheritance, Variation and Evolution: Evolution
- Selective Breeding
- Genetic Engineering
- Inheritance, Variation and Evolution: Cloning
- Inheritance, Variation and Evolution: Fossils
- Inheritance, Variation and Evolution: Speciation
- Inheritance, Variation and Evolution: Antibiotic-Resistant Bacteria
- Inheritance, Variation and Evolution: Classification
☑️ Ecology 18 topics
- Ecology: Competition
- Ecology: Abiotic and Biotic Factors
- Ecology: Adaptations
- Ecology: Food Chains
- Ecology: Using Quadrats
- Ecology: Using Transects
- Ecology: Environmental Change and The Water Cycle
- Ecology: The Carbon Cycle
- Ecology: Decay
- Ecology: Biodiversity and Waste Management
- Ecology: Global Warming
- Ecology: Deforestation and Land Use
- Ecology: Maintaining Ecosystems and Biodiversity
- Ecology: Trophic Levels
- Ecology: Pyramids of Biomass
- Ecology: Biomass Transfer
- Ecology: Food Security and Farming
- Ecology: Biotechnology
☑️ Required Practicals 11 topics
- Investigate the effect of light intensity on the rate of photosynthesis using pondweed
- Use a microscope to observe, draw, and label a selection of plant and animal cells
- Investigate the effect of a range of concentrations of salt or sugar solutions on the mass of plant tissues
- Investigate the effect of pH on the rate of reaction of amylase enzyme
- Plan and carry out an investigation into the effect of different concentrations of solutions on osmosis in potato cylinders
- Use qualitative tests to identify starch, reducing sugars, proteins, and fats
- Investigate the effect of temperature on the rate of decay of fresh milk by measuring pH change
- Investigate the population size of a common species in a habitat, using quadrats and a transect
- Measure the rate of respiration in living organisms
- Use sampling techniques to investigate the effect of a factor on the distribution of species within a community
- Investigate the effects of antiseptics or antibiotics on bacterial growth using agar plates and measuring zones of inhibition
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GCSE Biology (Triple) AQA Revision Content
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GCSE Biology (Triple) AQA - Cell Biology - Cell Biology: Cells Content Preview
Cell Biology
Cell Biology: Cells
1. Basics of Cells:
- All living organisms are composed of cells.
- Cell is considered as the basic unit of life.
2. Types of Cells:
- There are two main types of cells: prokaryotic and eukaryotic.
- Prokaryotic cells do not have a nucleus or membrane-bound organelles. Bacteria are typical examples.
- Eukaryotic cells have a nucleus and membrane-bound organelles. Animals and plants are composed of eukaryotic cells.
3. Parts of a Eukaryotic Cell:
- Key parts of a eukaryotic cell include nucleus, cytoplasm, cell membrane, mitochondria and ribosomes.
- The nucleus controls the activities of the cell and contains genetic material.
- The cytoplasm is a gel-like substance where most of the chemical reactions occur.
- The cell membrane is responsible for controlling the passage of substances into and out of the cell.
- Mitochondria are the site of aerobic respiration and where most energy is released.
- Ribosomes are the site of protein synthesis.
4. Plant Cells and Animal Cells:
- In addition to all the parts present in an animal cell, a plant cell also has cell wall, chloroplasts and a permanent vacuole.
- Chloroplasts are where photosynthesis occurs.
- The cell wall provides added strength and support to the cell.
- Permanent vacuole contains cell sap, a weak solution of sugar and salts.
5. Specialised Cells:
- Cells may be specialised to carry out a particular function.
- Examples include sperm cells, nerve cells and root hair cells in plants.
6. Microscopy:
- Light microscopes allow us to see the cells and large organelles like nuclei.
- Electron microscopes have much higher resolution and magnification so smaller details, like ribosomes and plasmids, can be seen.
7. Cell division and Differentiation:
- Cells divide in a series of stages called the cell cycle.
- During the cell cycle, the genetic material is duplicated and then divided into two new cells.
- In mature animals, cell division is mainly used for repair and replacement.
- In plants, cells retain the ability to differentiate throughout life.
- Differentiation is the process by which a cell changes to become specialised for its job.
Question: What is the role of the mitochondria in eukaryotic cells?
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