Bio lesson 8 mod 2

    Cards (23)

    • every cell, needs a continual supply of energy if it is to remain alive.
    • (cell, needs continual supply energy to remain alive) this energy originally comes from surprising source: sunlight. It is light energy
    • light energy from sun powers life on earth
    • Most organisms cannot use life energy directly, only one can which?
      Plants
    • How do plants capture all energy needed?
      A process called Photosynthesis
    • What is photosynthesis?
      Photosynthesis is the process by which plants convert sunlight, carbon dioxide, and water into glucose and oxygen.
    • Plants pass the energy needed on to other organisms in a form they can use
    • Photosynthesis is a chemical reaction performed only by plants
    • Can some bacteria photosynthesis?
      only few types of bacteria
    • Plants use light energy to join together molecules of water (from the soil) and carbon dioxide (from the air) to make glucose.
    • Light energy transformed into chemical energy stored in the glucose molecules in the leaves.
    • Chemical emergy used by plant and other forms of life, making them run
    • Glucose is "bottled sunlight energy" THINK OF IT LIKE THAT
    • Photosynthesis involves several complex chemical
    • Photosynthesis word equation:
    • In Photosynthesis carbon diozide and water get used up, glucose and oxygen are made
    • Photosynthesis word equation goes from, reactants(carbon dioxide+water) converted by light energy, and chlorophyll to the products (glucose+oxygen)
    • Photosynthesis equation means carbon dioxide and water get used up. Whilst glucose and oxygen are made.
    • Light energy is not a chemical substance
    • Only chemical substances written on the line in a chemical eqution.
    • Chlorophyll under arrow because altough it is a chemical substance it is not used or made in reaction, only recyled/transfers/changes. (absorb the light-glucose, oxygen)
    • Sun provides heat and light radiation, plants use light in photosynthesis, not heat.
    • Plants use any light of the right wave length in photosynthesis (fake light, lamps, coloured too)