𝐛𝐒𝐨π₯𝐨𝐠𝐲 𝐩𝐚𝐩𝐞𝐫 𝟏 🧬πŸ§ͺπŸ”¬πŸ§«

    Cards (244)

    • Which AQA GCSE biology paper 1 topics are covered in this material?
      Cells, organization, infection, response, and bioenergetics
    • What type of microscope is needed to see subcellular structures?
      Electron microscope
    • What properties of electron microscopes allow for finer detail observation?
      Better resolving power and higher resolution
    • How do you calculate the actual size of a cell using magnification?
      Image size divided by object size
    • What is the name given to cells that have a nucleus?
      Eukaryotic cells
    • What is the name given to cells that do not have a nucleus?
      Prokaryotic cells
    • What does it mean for a cell membrane to be semi-permeable?
      Allows certain substances to pass through
    • What is the main function of the cell membrane?
      Keeps everything inside the cell
    • What material makes up the cell wall of plant cells?
      Cellulose
    • What is the role of the cell wall in plant cells and bacteria?
      Providing a rigid structure
    • What is the liquid that makes up the cell called?
      Cytoplasm
    • What is the purpose of the cytoplasm?
      Most chemical reactions take place
    • Where does respiration take place in a cell?
      Mitochondria
    • What is the result of respiration?
      Releasing energy for the cell
    • Where are proteins assembled in a cell?
      Ribosomes
    • Which organelle contains chlorophyll?
      Chloroplasts
    • What is the function of chlorophyll?
      Where photosynthesis takes place
    • What is stored in the vacuole of a plant cell?
      Sap
    • Which type of cells contain a permanent vacuole?
      Plant cells
    • Which process do bacteria use to multiply?
      Binary fission
    • What is the purpose of using aseptic technique in bacterial culture?
      Ensuring nothing else contaminates the culture
    • Why should the lid of a petri dish be lifted near a flame?
      To destroy microbes in the air
    • Why should a petri dish not be completely sealed with tape?
      Air will not get in
    • Why do bacteria need air to get in when incubated?
      So they can respire aerobically
    • At what temperature should bacteria cultures be incubated?
      25 degrees
    • What formulas are used to calculate the area of bacterial growth?
      Ο€r2\pi r^2 or Ο€d2/4\pi d^2 / 4
    • How is DNA stored in eukaryotic cell nuclei?
      In several chromosomes
    • How many pairs of chromosomes do human cells have?
      23 pairs
    • What term describes cells with paired chromosomes?
      Diploid cells
    • How many chromosomes do human gametes have?
      23
    • What term describes cells with half the normal number of chromosomes?
      Haploid cells
    • Why do organisms need to make new cells?
      For growth and repair
    • By which process do cells duplicate?
      Mitosis
    • What are the stages of mitosis?
      • Genetic material is duplicated
      • Nucleus breaks down
      • Chromosomes pulled to opposite sides
      • New nuclei form
      • Two identical cells result
    • What happens to cells as they specialize?
      They depend on the function they need
    • What types of cells are nerve and muscle cells?
      Specialized cells
    • Which cells are undifferentiated?
      Stem cells
    • Where are stem cells found in animals?
      Embryos and bone marrow
    • Where are stem cells found in plants?
      Merry stem
    • What types of cells can bone marrow stem cells produce?
      Blood cells
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