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B1 Cells

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  • What is the function of the cell wall?
    structure and support
  • What is the function of the chloroplasts?
    Photosynthesis
  • How is a sperm cell adapted to its function?
    tail to swim, mitochondria for energy, enzymes to digest cell membrane, pointed head to penetrate egg
  • How is a root hair cell adapted to its function?
    Large surface area to absorb water
  • What is the function of the nucleus?
    Contains DNA, controls the cell's activities
  • What is the function of the cell membrane?
    Controls which substances can enter and leave the cell
  • How many structures are in a plant cell?
    8
  • How many structures are in an animal cell?
    5
  • What does the fine focus do?
    Focusses the image/removes blurriness
  • What is a prokaryote? Give an example.
    A cell with NO nucleus e.g. bacteria
  • What is the function of the vacuole?
    contains cell sap, keeps cell turgid
  • What is the function of the mitochondria?
    Release energy in respiration
  • What does the coarse focus do?
    Move the stage up and down
  • What 5 structures are in an animal cell?
    Cell membrane, nucleus, cytoplasm, ribosomes, mitochondria
  • How is a red blood cell adapted to its function?
    No nucleus and biconcave shape to provide a large surface area to carry more oxygen, thin walls for fast diffusion
  • Name 3 specialised cells
    Red blood cell, root hair cell, sperm cell, egg cell, muscle cell
  • How is a nerve cell adapted to its function?
    long and branched to send electrical signals around the body
  • What is a eukaryote? Give an example.
    A cell which contains a nucleus. e.g. animal and plant cell
  • Why do we add iodine to our onion cell?
    To stain the cell and increase visibility
  • What is a cell?
    The basic building blocks of life
  • How do we convert from cm to mm?
    x10
  • How do we convert from mm to um?
    x1000
  • How do we convert from um to nm?
    x1000
  • What is the function of the ribosomes?
    protein synthesis
  • What is a specialised cell?
    A cell with a particular function/role
  • What happens in the cytoplasm?
    All the chemical reactions
  • Which 3 structures are in a plant cell but not in an animal cell?
    Cell wall, chloroplasts, vacuole
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