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Y9 Cells and Organisation

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  • Which organelle does a sperm cell have lots of to give it energy to swim?
    Mitochondria
  • What is the equation to calculate magnification?
    Magnification = Image Size / Actual Size
  • Which microscope has a higher resolution?
    Electron
    Light
  • If I increase the concentration of the salt solution, will water move in or out of the potato?
    Out, the concentration of water is higher in the potato, so water will move out of the potato , into the solution by OSMOSIS
  • Does active transport need energy? Why?
    Yes! Molecules are transported against their concentration gradient, from low to high, this needs energy!
  • What is one benefit of an electron microscope over a light microscope?
    Higher magnification and resolution
  • Which type of cell contains DNA?
    Plant and animal
    All 3!
    Bacteria only
    Plant and bacteria
  • If I increase the temperature, will diffusion happen faster or slower? Why?
    Faster! The particles have more energy, so will move more quickly
  • What is this part of the microscope called?
    Stage
    Objective lens
    Arm
    Eyepiece lens
  • If I put the potato into a bowl of water , will water move in or out of the potato?
    In, the concentration of water is higher out of the potato, so water will move into the potato , from the solution by OSMOSIS
  • Which substances are transported during diffusion?
    Particles - gas or liquid, not a solid!
  • Which substance does a red blood cell carry from the lungs to our body tissues?
    Oxygen
  • Which type of cell contains cytoplasm?
    Bacteria only
    Plant and bacteria
    Plant and animal
    All 3!
  • What is this part of the microscope called?
    Eyepiece lens
    Stage
    Arm
    Objective lens
  • Which type of cell contains chloroplasts?
    Plant only
    Bacteria only
    Plant and animal
    All 3!
  • Does osmosis need energy? Why?
    No, water molecules move from high to low concentration - DOWN the concentration gradient
  • What is this part of the microscope called?
    Objective lens
    Fine focus
    Eyepiece lens
    Coarse focus
  • Which type of cell contains a flagellum?
    Plant and bacteria
    Bacteria only
    Plant and animal
    All 3!
  • What is this part of the microscope called?
    Stage
    Eyepiece lens
    Arm
    Objective lens
  • Does diffusion need energy? Why?
    No, particles move from high to low concentration - DOWN the concentration gradient
  • What is the equation to calculate Actual Size?
    Actual Size = Image Size / Magnification
  • Which is NOT an adaptation of the alveoli to allow fast gas exchange in the lungs?
    Thin wall (only 1 cell thick)
    Large surface area
    Lots of mitochondria
  • Which organelle does a muscle cell have lots of to give it energy to contract?
    Mitochondria
  • What is the equation to calculate Image Size?
    Image Size = Actual Size x Magnification
  • What is this part of the microscope called?
    Objective lens
    Coarse focus
    Eyepiece lens
    Fine focus
  • Which substance is being transported during osmosis?
    Water
  • What is one benefit of a light microscope over an electron microscope?
    They are cheaper, we can use live specimens
  • Which type of cell contains a cell wall?
    Plant and animal
    Plant and bacteria
    All 3!
    Bacteria only
  • Which type of plant cell contains chloroplasts?
    Root Hair Cell
    Palisade Cell
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