Cells, tissues, organs and organ systems

• aerobic reparation = mitochondria.
• cell membrane = inside.
• cell wall = outside.
• Mitochondria is responsible for aerobic respiration
• The slime coat is found on the outside of a bacterium's cell wall and it protects the bacterium
• Cell wall is one feature that is present in all types of plant cells but is never found in animal cells
• Mitochondria is found in both plant and animal cells
• What is part E made of

  A) Cellulose

  
• Bacterial cell is smaller than yeast cells and plant cells
• Water currents move plankton from place to place
• DNA plasmids are found in the cytoplasm
• What is structure 1

  A) Nucleus

  
• An amoeba has a contractile vacuole in its cytoplasm. This structure collects and helps to get rid of excess water from the amoeba's body
• Cell surface membrane = keeps cell together and controls what goes into and out of the cell
• Nucleus = controls the cell
• Cytoplasm = where activities happen, including respiration (which occurs in mitochondria)
• Chloroplast = contains chlorophyll to trap sunlight for photosynthesis
• Cell wall = made of cellulose and provides support
• Vacuole = storage space
• Some cells are specialised and have special functions
• Muscle cells


  • Shape to move things
• Root hair cells


  • Take in water
• Fat cells


  • Store fat
• Xylem cells


  • Carry water
• Tissue


  A group of cells that are the same, all doing the same job
• Organ


  A group of different tissues working together to do an important job
• Heart


  • Pumps blood
• Liver


  • Makes and stores some substances, and destroys other substances
• Diaphragm


  • Helps breathing
• Stomach


  • Breaks up food
• Kidneys


  • Clean the blood and produce urine to excrete wastes
• Leaf


  • Traps sunlight to make food for the plant
• Stem


  • Carries substances around the plant and supports the leaves and flowers
• Root


  • Holds the plant in place and takes water and small amounts of other substances from the soil
• Bladder


  • Stores urine
• Rectum


  • Stores faeces (waste materials excreted by the liver and unwanted food)
• Large intestine


  • Removes water from unwanted food
• Small intestine


  • Breaks up food and absorbs it, to provide nutrition for the body
• Organ systems


  Organs often work together in organ systems
• Organ systems


  • Breathing system
  • Circulatory system
  • Digestive system
  • Nervous system
  • Urinary system
  • Locomotor system
  • Water transport system (plants)