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Microbiology: Cell Transport and Bacterial Structures

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Termini in questo insieme (20)

  • Why do cells transport materials?
    To get nutrients and remove waste.
  • Does passive transport require energy?
    No, passive transport does not require energy.
  • Does active transport require energy?
    Yes, active transport requires energy.
  • What is diffusion?
    Movement of molecules from high to low concentration.
  • Is diffusion passive or active?
    Diffusion is a passive process.
  • Does diffusion require ATP?
    No, diffusion does not require ATP.
  • What is osmosis?
    Movement of water across a membrane.
  • Is osmosis passive or active?
    Osmosis is a passive process.
  • Does osmosis require ATP?
    No, osmosis does not require ATP.
  • Is primary active transport active?
    Yes, primary active transport is an active process.
  • Does primary active transport directly use energy?
    Yes, it directly uses energy (usually ATP).
  • Is secondary active transport active?
    Yes, secondary active transport is an active process.
  • Does secondary active transport use an ion gradient?
    Yes, it uses an ion gradient to drive transport.
  • What is the bacterial plasma membrane made mainly of?
    Mainly phospholipids and proteins.
  • Which part of a phospholipid is hydrophilic?
    The head is hydrophilic (likes water).
  • Which part of a phospholipid is hydrophobic?
    The tails are hydrophobic (avoid water).
  • What do membrane proteins help do?
    They help transport materials across the membrane.
  • What is an endospore?
    A dormant survival structure formed by some bacteria.
  • Why do bacteria make endospores?
    To survive harsh conditions like heat or desiccation.
  • Are endospores used for reproduction?
    No, endospores are for survival, not reproduction.