Biology Questions and Answers

(Greg DeLong) #1

Biology Questions and Answers


Chlorophyll is green because it reflects
the green light frequency, i.e., it dnot “use” the green range of the oes
electromagnetic spectrum. Thus green


light does not favor photosynthesis(curiously green is the light that plants (^)
“dislike”).



  1. What are the divisions of
    white light according to the
    electromagnetic spectrum?
    Which are the two most
    efficient colors for
    photosynthesis?


The color divisions oelectromagnetic spectrum if the (^) n decreasing
order of frequency are: red, orange,
yellow, grWhen mixeeen, blue, anil and together these colorsd violet.
generate white.
Experimentally itmost useful colors for photosynthesis is verified that the (^)
are blue and red.



  1. What is NADP and NADPH?


NADP is the nicotinamide adenine dinucleotidabbreviation of the (^) e
phosphate cation, a NADPH is made when NADP bihydrogen acceptor.nds to
one hydrogen atom and it is the form
that actually transports hydrogen.



  1. Photosynthesis is the most
    important producer of
    molecular oxygen (O 2 ) on our
    planet. From which molecule
    do oxygen atoms liberated by
    photosynthesis come? From
    which other molecule could
    one suspect they have come?
    What are the destinations of
    those oxygen atoms?


The oxygen atoms liberated asmolecular oxygen by the photosynthesis (^)
process come from water.
One indeed could suspect that thoseoxygen atoms would have come from (^)
carbon dioxide. Oxycarbon dioxide however aregen atoms fr om
incorporated into glucose molecules and
into water molchemical stage of photosynthecules liberated in theesis.



  1. Where do the
    photochemical and the
    chemical stages of
    photosynthesis occur?


The photochemical stage photosynthesis process occurs mainlyof the (^)
on the thylakoids (the green part) and
the chemical stage occurs in (the colorless framework) of thethe stroma
chloroplasts.
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