brief explanation

1. CHEMISTRY
ASSIGNMENT
AYESHA AZMATH
MCB-22
ST.ANNS DEGREE
COLLEGE

5. Chlorophyll (also chlorophyl) is any of
several closely related
green pigments found
in cyanobacteria and
the chloroplasts of algae and plants. Its
name is derived from the Greek words
chloros ("green") and
phyllon ("leaf").Chlorophyll is essential
in photosynthesis, allowing plants to
absorb energy from light. Chlorophyll
absorbs light most strongly in the blue
portion of the electromagnetic
spectrum, followed by the red portion.

6. Conversely, it is a poor absorber of green
and near-green portions of the spectrum,
which it reflects, producing the green color
of chlorophyll-containing tissues. Chlorophyll
molecules are specifically arranged in and
around photosystems that are embedded in
the thylakoid membranes of chloroplasts.
Two types of chlorophyll exist in the
photosystems of green plants: chlorophyll a
and b. Chlorophyll was first isolated and
named by Joseph Bienaimé
Caventou and Pierre Joseph Pelletier in 1817.

15. Conjugated double bonds-
delocalized electrons-light
absorption

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