The ultimate source of
energy is the ______.
Not all of the ______
that ______________
is _________.
5.1
5B ZQ
,• The ultimate source
of energy is the sun
• Not all of the light
energy that falls on a
plant is used by the
plant for
photosynthesis
,Why is not all the
light energy that
falls on a plant
used for
photosynthesis?
5.1
5B ZQ
, • Some of the light does not fall
on photosynthetic parts of the
plant (e.g. the leaves) and even
if it does it may not strike
chlorophyll
• Some of the light is not of an
appropriate wavelength to be
in photosynthesis
• Some of the light is reflected or
transmitted through the leaf