Surface Area to Volume Ratio

Cards (32)

  • What concept is explained in this video regarding organisms?
    Surface area to volume ratio
  • Why can single-celled bacteria rely on diffusion?
    They have a high surface area to volume ratio
  • What do large multicellular organisms require for substance exchange?
    Specialized exchange surfaces and transport systems
  • What resources do single-celled organisms need to absorb?
    Oxygen, glucose, and amino acids
  • What waste products do single-celled organisms need to eliminate?
    Carbon dioxide
  • How does surface area to volume ratio change as organisms grow larger?
    It decreases as organisms get larger
  • How is the surface area of a cube calculated?
    Area of one face multiplied by six
  • What is the surface area of a 1 cm cube?
    6 square centimeters
  • What is the volume of a 1 cm cube?
    1 cubic centimeter
  • What is the surface area to volume ratio of a 1 cm cube?
    6 to 1
  • What is the surface area of a medium cube with a side length of 2 cm?
    24 square centimeters
  • What is the volume of a medium cube with a side length of 2 cm?
    8 cubic centimeters
  • What is the surface area to volume ratio of a medium cube?
    3 to 1
  • What is the surface area of a large cube with a side length of 3 cm?
    54 square centimeters
  • What is the volume of a large cube with a side length of 3 cm?
    27 cubic centimeters
  • What is the surface area to volume ratio of a large cube?
    2 to 1
  • How does the surface area to volume ratio change from the smallest to the largest cube?
    It decreases from 6 to 1 to 2 to 1
  • Why do larger organisms need specialized exchange surfaces?
    To increase their surface area to volume ratio
  • What structures in the lungs increase surface area for gas exchange?
    Alveoli
  • What structures in the intestines increase surface area for nutrient absorption?
    Villi
  • How does diffusion distance change as organisms grow larger?
    It increases significantly with size
  • How much further do molecules have to diffuse in humans compared to bacteria?
    50,000 times further
  • What is the role of transport systems in larger organisms?
    To transport molecules from exchange surfaces
  • What do plants use for substance exchange with the environment?
    Roots and leaves
  • What tissues do plants use to transport substances?
    Phloem and xylem
  • What does the term "large organisms" refer to?
    Anything visible to the naked eye
  • Who is the presenter of the video?
    Amadeus
  • What does the learning platform offer?
    Videos, practice questions, and progress tracking
  • Is the learning platform free?
    Yes
  • Where can you find the link to the lesson?
    In the description below the video
  • What is the purpose of the playlist mentioned in the video?
    To organize all videos for the subject
  • What is the final message from the presenter?
    Hope you enjoy and see you next time