Cells

Cards (23)

  • What are cells considered in biology?
    The basic building blocks of life
  • What is the smallest unit of life that can replicate independently?
    A cell
  • How do bacteria reproduce when they divide?
    They produce a whole new organism
  • What type of cells are animals and plants classified as?
    Eukaryotic cells
  • How many types of cells does an adult human contain?
    Over 40 trillion cells
  • What surrounds both animal and plant cells?
    A cell membrane
  • What is the function of the cell membrane?
    Controls substances passing in and out
  • What contains the genetic material of the cell?
    The nucleus
  • What is cytoplasm compared to in the video?
    Water filling a water balloon
  • What is the role of mitochondria in cells?
    Provide energy for cell function
  • What process do mitochondria use to release energy?
    Aerobic respiration
  • What are the common subcellular structures in both animal and plant cells?
    • Cell membrane
    • Nucleus
    • Cytoplasm
    • Mitochondria
    • Ribosomes
  • What additional structure do plant cells have that animal cells do not?
    A rigid cell wall
  • What is the function of the cell wall in plant cells?
    Provides support and structure
  • What is contained in the permanent vacuole of plant cells?
    Cell sap
  • What is the role of chloroplasts in plant cells?
    Site of photosynthesis
  • What green substance do chloroplasts contain?
    Chlorophyll
  • What do bacteria consist of?
    A single prokaryotic cell
  • What structures do bacterial cells lack compared to eukaryotic cells?
    Mitochondria and chloroplasts
  • How is bacterial genetic material organized?
    Single circular strand of DNA
  • What are plasmids in bacteria?
    Small rings of DNA
  • What is the function of flagella in bacteria?
    Propel the bacteria for movement
  • Compare the structures of eukaryotic and prokaryotic cells.
    Eukaryotic cells:
    • Have a nucleus
    • Are multicellular (e.g., plants, animals)
    • Contain organelles like mitochondria and chloroplasts

    Prokaryotic cells:
    • Lack a nucleus
    • Are unicellular (e.g., bacteria)
    • Have a circular strand of DNA