Cells - Biology ks3

Specialised Cells
1. They have features that make them more suited to its job/purpose
2. Red Blood Cell
  1. Function
    1. Carry Oxygen around the body packed with haemoglobin
  2. Adaptation
    1. No nucleus, and it has a large surface . Concave shape
3. Nerve Cell (Neuron)
  1. Function
    1. Transmit and store information e.g. Pain receptors. Help protect , they relay messages to your brain
  2. Adaptation
    1. They have many connecting branches
4. White Blood Cell
  1. Function
    1. Engulf and destroy bacteria
  2. Adaptation
    1. Their cytoplasms can flow, so they can move around more easily
5. Ciliated epithelial Cell
  1. Function
    1. Keep the trachea (throat) clear of things like dust
    2. Keep Nose clear and in the fallopian tubes move the egg in 2 the uterus
  2. Adaptation
    1. They have tiny hairs that move from side to side to brush dust away
6. Sperm Cell
  1. Function
    1. To fertilise egg cells
  2. Adaptation
    1. Has a powerful tail and is streamlined
7. Muscle cells
  1. Function
    1. Contract to pull on bones and make you move
    2. Joined to bones by tendons (elastic bands)
  2. Adaptation
    1. Long and thin packed into groups
Plant Cells
1. What it has
  1. Nucleus
    1. Control centre of a cell
  2. Cytoplasm
    1. Liquid where chemical reactions happen
  3. Cell Membrane
    1. Surrounds the cell and controls what can enter and leave it
  4. Chloroplast
    1. Contains the chemicals required for chemical reactions.
  5. Vacuole
    1. Full of sap
  6. Cell Wall
    1. Supports the cell
Animal Cells
1. What it has
  1. Nucleus
    1. Control centre of the cell
  2. Cytoplasm
    1. Liquid where chemical reactions take place
  3. Cell Membrane
    1. Surrounds the cell and controls what goes in and out.
Tissues/Organs etc
1. Organs
  1. Heart
    1. What is it made of?
      1. muscle tissue
      2. fat tissue
      3. blood
      4. nervous tissue
      5. cartilege
  2. Kidney
    1. Filters + clans the blood
  3. Intestines
  4. Lungs
    1. Take in oxygen and breath out carbon dioxide
  5. Brain
    1. Controls all activites
  6. Stomach
2. An organ system is a number of organs connected together to complete one process.
  1. Nervous system - brain, spinal cord, nerves, eyes, ears, nose tongue and skin
  2. Circulatory system - heart, blood and blood vessels
  3. Digestive system - Mouth, stomach and intestines

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Cells - Biology ks3

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	Created by Ellen Billingham almost 9 years ago

	Copied by Ed Owens almost 9 years ago