Biology

Subdecks (2)

Cards (53)

  • Mechanical digestion definition 

    Involves physical actions that make chunks of food smaller
  • What does mechanical digestion do? 

    Increases the surface area available for chemical digestion to occur
  • Chemical digestion definition 

    Uses certain enzymes to break down nutrients into smaller molecules
  • Where is bile produced
    Liver
  • Where is it stored
    Gall bladder
  • Where is bile released into 

    Small intestine
  • Bile is what? 

    An alkaline
  • What does Bile do to your stomach?
    Neutralises the acid
  • Name of stomach acid
    Hydrochloric acid
  • Bile makes the conditions of the stomach acid? 

    Neutral/alkaline
  • Bile does what to fats?
    Emulsifies fat
  • Bile turns fats into?
    ‘tiny droplets’
  • Enzymes in the small intestine work best in these alkaline conditions
  • This gives a bigger surface area of the fats for lipase to work on
  • Two types of cells:
    • Eukaryotic
    • prokaryotic
  • What are prokaryotic cells (size and example)
    • Bacteria
    • 0.1-0.5
  • What are eukaryotic cells? (Size and types)
    • Plants
    • fungi
    • protist
    • Animal cells
    • 10-100
  • Different parts of the cell are called? 

    Sub cellular structure
  • Nucleus does? 

    Contains genetic material.
    Genetic material controls what the cell does
  • Cytoplasm does? 

    Where most of the chemical reactions happen
  • Cell membrane does? 

    Controls what goes in and out of the cell
  • Mitochondria does? 

    Most aerobic respiration happens
    Respiration transfers energy that cells need to work
  • Ribsomes does? 

    Where proteins are made in cells
  • Animal cells contain:
    • nucleus
    • cytoplasm
    • cell membrane
    • mitrochondia
    • ribsome
    1. nucleus
    2. cytoplasm
    3. cell membrane
    4. mitrochondia
    5. ribsomes
  • Cell wall does? 

    Made of cellulose
    It supports the cell and strengthens it.
  • Permanent vacuole does? 

    Contains cell sap
  • Chloroplast does? 

    Where photosynthesis happens.
    Photosynthesis makes food for The plants
  • Plant cells contain:
    • nucleus
    • cytoplasm
    • cell membrane
    • mitrochondia
    • ribsomes
    • cell wall
    • permanent vacuole
    • chloroplast