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Life Processes and Cells

Life Processes
1. MRS GREN
  1. Movement
    1. The ability to move parts of the body
  2. Respiration
    1. Release of energy from food
  3. Sensitivity
    1. The ability to respond to changes in the surroundings
  4. Growth
    1. To grow to adult size
  5. Excretion
    1. To release waste products
  6. Nutrition
    1. To obtain food (plants- photosynthesis)
  7. Reproduction
    1. To produce offspring (flowers germinate)
Specialized Cells
1. Plant Cells
  1. Root Hair cell
    1. Function
      1. To absorb water and minerals from the soil
    2. Adaptation
      1. Has long and thin hair
  2. Paliside cells
    1. Function
      1. To absorb light for photosynthesis
    2. Adaptaion
      1. They have a lot of chloroplasts
2. Animal Cells
  1. Ciliated Epithelial Cell
    1. Function
      1. Keeps the trachea (windpipe) clear of thengs like dust
    2. Adaptation
      1. Has tiny cilia, hair which brush away dirt
  2. Nerve Cells (Neurons)
    1. Function
      1. They conduct messages around the body
    2. Adaptation
      1. Are shaped like wires
        The information goes past quicker
  3. Red Blood Cell
    1. Function
      1. Carries oxygen around the body
    2. Adaptation
      1. They have no nucleus
      2. They have a large surface area
        More area to absorb and to release oxygen
  4. White Blood Cell
    1. Function
      1. To protect the body and engulf and destroy bacteria and other harmful microbes
    2. Adaption
      1. Their cytoplasm can flow so they move around mor easily
Plant and animal cells
1. Animal cells
  1. The Nucleus
    1. Controls all activities in the cell
  2. The Cell membrane
    1. Controls what leaves and enters the cell
    2. Keeps the cell together
  3. The Cytoplasm
    1. Jelly like
    2. Chemical reactions happen here
2. Plant cells
  1. The Nucleus
    1. Controls all activities in the cell
  2. The Cytoplasm
    1. Chemical reactions happen here
  3. The Cell Membrane
    1. Controls what leaves and enters the cell
    2. Keeps the cell together
  4. The Vacuole
    1. A large place containing cell sap
  5. Chloroplasts
    1. The structures where photosynthesis happens
    2. They contain chlorophyll
  6. The Cell Wall
    1. Made of cellulose
    2. Gives a plant cell strength and support
Tissues and organs
1. Organs
  1. Organs are made up of different tissues working together
  2. Examples
    1. Liver
    2. Kidneys
    3. Stomach
    4. Intestines
    5. Brain
    6. Heart
      1. The Heart is made up of
        Muscle tissue
        Nervous tissue
        Cartilage
        Fat Tissue
        Blood
    7. Skin
      1. The skin is the largest organ!
  3. A group of organs working together is called an organ system
    1. cardovascular
    2. The digestive system
    3. The nervous system
    4. The muscle system
2. Tissues
  1. Tissues are a group of similar cells that are working together

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Life Processes and Cells

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	Created by Emma Boxley about 11 years ago