PLANT EXAM 2

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shockwave
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46894
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PLANT EXAM 2
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2010-11-02 22:32:34
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PLANT EXAM
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PLANT EXAM 2
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  1. light energy drives the synthesis of
    ------ and generation of ----
    from
    CO
    2 and H2O
    • carbohydrates
    • O2

  2. THE HUMUS THEORY.
    WHAT IS IT AND WHEN?
    • (~300 BC): plants absorbed
    • organic material directly from the soil for their growth

  3. WHAT THEORY CONCLUDED IN substance of the plant was produced from the
    water and none from the soil?
    • Van Helmont’s
    • (~1600)

  4. WHAT WAS JOESPH PRIESTLEY THEORY?



    It recognized that plants can purify the air exhaled by animals.

  5. WHAT WAS JAN INGENHOUSZ'S DEAL WITH PLANTS?
    • Confirming Priestley’s work 1773 HOLLAND
    • Plants could purify air only when the green parts of plants were exposed to sunlight
    • Believed that plants absorb carbonic acid and convert it into organic matter and oxygen in presence of sunlight.

  6. WHO'S EXPERIMENT DELT WITH "FIXED" AIR?




    In 1782, Jean Senebier reported the purification of air by green plants in the light was dependent on the presence of “fixed” air.

  7. light-driven release of O2 in the absence of CO2 IS KNOWN AS ?
    • THE HILL REACTION

  8. Calvin traced path of carbon in photosynthesis and
    gave WHAT CYCLE?
    • C3

  9. 1965 - Hatch and Slack reported the ------ path way for CO2 fixation in certain tropical grasses
    • C4

  10. Equation of
    photosynthesis
    • 6CO2 + 6H2O---->C6H12O6 + 6O2
    • carbon dioxide + water = sugar + oxygen

  11. photosynthetic products often stored as WHAT?

    • starch


  12. WHERE DOES THE 6 CO2 END UP IN PHOTOSYNTHESIS?
    • IN THE SUGAR

  13. PHOTOSYNTHESIS CAN BE DIVIDED INTO 2 GENERAL PROCESS.
    NAME THEM.
    • O2 PRODUCTION
    • SUGAR PRODUCTION

  14. WHERE DOES THE LIGHT REACTION OCCUR?
    • CHLOROPHYLL

  15. THE CARBON FIXATION REACTION OCCURS IN WHAT CYCLE?
    • CALVIN

  16. NADPH STANDS FOR WHAT?
    • nicotinamide adenine dinucleotide phosphate

  17. WHAT IS THE RESULT OF THE LIGHT CYCLE IN PHOTOSYNTHESIS?
    • Convert light energy to chemical
    • energy (ATP and NADPH)

  18. CONVERSION OF CO2 INTO ORGANIC FORM OCCURS IN WHAT CYCLE?
    • CALVIN

  19. Each photon contains energy, called a
    • quantum
    • (plural quanta)

  20. c = λν

    IF LAMBDA IS HIGH WHAT HAPPENS TO V (FREQ)?

    • IT'S LOW. LAMBDA AND V ARE INVERSLY RELTAED.
    • V=C/LAMBDA
    • C= LIGHT SPEED 3.0 X 10^8 M S ^-1


  21. T OR F?

    E and λ are NOT inversely related?



    • TRUE
    • MORE E -->SHORTER WAVELENGTHS. (MORE OF THEM)

  22. AT HIGHER V WHAT ARE THE E AND LAMBDA LEVELS?
    • HIGH E
    • SHORTER LAMBDAS

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