Biology

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  • Biology
    • Cells
      • Animal
      • Skin
      • Plant
      • Sperm
      • Eggs
      • Blood
        • White
        • Red
    • Tissues, organs and organ systems
      • Types of tissues
        • Muscular tissue- Contracts and bringing about movement
        • Glandular tissue- produces substances such as enzymes and hormones
        • Epithelial tissue- covers some parts of the body
      • Types of plant tissues
        • Epidermal tissue- covers the plant
        • Mesophyll-  carries out photosynthesis
        • xylem and phloem- transport of substances around plant
    • Photosynthesis
      • Gas needed - Carbon Dioxide
      • Type of energy needed - Light
      • Waste product photosynthesis produces is Oxygen
      • Word equation - Carbon Dioxide + Water = Glucose + Oxygen
    • Organisms  and their environment
      • Factors that affect organisms
        • Temperature
        • Amount of light
        • Availability of  water
        • Availability of nutrients
        • Availability of oxygen and carbon dioxide
      • Environment-  all the conditions that surround a living organism
      • Habitat the place where an organism lives
      • Population-  all the members of a single species that live in a habitat
      • Community- all the population of different species that live together in a habitat
      • Ecosystem-  a community and the habitat in which it lives
    • Proteins - their functions and uses
      • Enzymes
        • Protease ( AMINO ACIDS)
        • Amylase (GLUCOSE)
        • Lipase (FATTY ACIDS, GLYCEROL)
    • Respiration
      • Aerobic - this uses oxyegen
      • Anaerobic- Does NOT use oxygen
    • Cloning
      • 1. an egg a sperm.
        • 2. zygote
          • 3 take a nucleus from the embryo
            • 4.Get any egg and throw away nucleus
              • 5.Put nucleus and egg together put in woman both babies the same
    • Cell division and inheritance
      • Chromosomes (made of DNA) before cell divides DNA doubles
        • This process is call MITOSIS
      • EXAMPLE
        • Cystic Fibrosis (RECESSIVE)
        • Polydactylys (DOMINANT)
      • Inherited disorders
        • Dominant
          • Can't be carried (Stronger alleles)
        • Recessive
          • Can be carried (Weaker alleles)
    • Specatation
      • Fossils
        • Mineral Replacement
          • Minerals in groundwater replace minerals in hard parts of the skeleton e.g. bone/shell
        • Mummification
          • Growth of decay organisms is prevented by conditions in the ground e.g. too cold/acidic soft tissues are prevented
        • Moulds and Casts
          • Dead organisms pressed into soft sediment  fossil decays and leaves shape making a cast. shape is a mould
        • Trace Fossils
          • Things made by organisms such as foot prints, burrows or root shape. can make casts in the right conditions
        • 1. Dinosaur dies
          • 2.More layers of sediment build up bones turn to stone fossils
            • 3. The dinosaur is covered by a layer of sediment the soft parts of the body decay leaving hard bones
              • 4. Many years later people find the fossilised bones
    • Darwin and Lamarck
      • Theory  of evolution
        • Darwin- Survival of the fittest the fittest would go on to breed and offspring would have strengths and a new species can be made
          • Enviromentalpressures- water, food, space and predators
          • Mutations (changes in DNA)
          • Common ancestor
          • Survival of the fittest
          • Reproduction
          • Evolution
        • Lamarck-  if living things kept doing something they would change, they could learn

Comments

Lucy :)

I think this is Biology like the title says not Business and Communications :D

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