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science - Coggle Diagram

- - - - water, carbon dioxide and oxygen are the few substances that move in and out of cells
        
        through duffusion
        
        osmosis
        
        diffusion is one principal method of movement of substances within cells
    - - transport system
        
        material is moved
        
        exchange surface
        
        exchange surface to cells located throughout the organism
        
        not all individual cells require all of the many different types of materials carried by a transport system
        
        why living things need a transport system
        
        when the size of an organism increases its surface area to volume ratio increases
        
        large multicellular organisms cannot rely on diffusion alone to supply cells with substances such as oxygen and food to remove waste products
        
        therefore large multicellular organisms need a specialised transport system
  - - - sexual transmitted disease
        
        genital herpes
        
        chlamydia
        
        HIV
        
        genital warts
        
        gonorreah
        
        hepatitis
        
        syphilis
        
        trichomoniasis
        
        AIDS
    - - animals
      - plants
      - bacteria
    - - miosis
        
        involving the halving of the number of chromosomes
      - fertilization
        
        involving the fusion of two gametes and the restoration of the original number of chromosomes
  - - - organs used
        
        small intestine
        
        breaks down Starches, proteins, and carbohydrates
        
        pancrease
        
        breaks down Carbohydrates, fats, and proteins
        
        stomach
        
        breaks down protien
        
        into amino acids
        
        liver
        
        breaks down fats
        
        into fatty acids
      - chemical digestion
        
        it produces hormones, one of which is called cholecystokinin (CCK). Cells in our small intestine produce CCK when our system registers that fats or proteins have arrived in our stomach.
      - mechanical digestion
        
        food broken down by the mouth by chewing
        
        tongue pushing the food towards the back of the throat, where it travels down the esophagus as a bolus.
      - enzymes used to break down food
        
        pepsin
        
        produced in the stomach.
        
        trypsin
        
        produced in the pancreas
        
        amylase
        
        produced in the mouth. It helps break down large starch molecules into smaller sugar molecules
        
        pancreatic lipase
        
        produced in the pancreas.