Page 124 - The Evolution Impasse 2

122 Origin of Photosynthesis

Skin mem brane
Epidermis
Tissue contain ing
pho to syn the siz ing
cells
Cross-sec tion of leaf Pore (sto ma)

Chloroplast
Thylacoids
Outer mem -
brane
Inner mem brane
Photosynthetic cell
Main tis sue
Thin scale Granum
Granum

Plant cells per form pho to syn the sis, a proc ess that can not be car ried out in any lab o ra to ry.
Thanks to an or gan elle in the cell known as the chlo ro plast, plants use wa ter, car bon di ox ide
and the en er gy from sun light to man u fac ture starch. This nu tri ent is the first link in the Earth's
food chain and the source of nour ish ment for all liv ing things on Earth. The de tails of this high -
ly com plex proc ess have still not been ful ly de ci phered.

starch that comes from plants. For of nat u ral events. The ev o lu tion ist
that rea son, pho to syn the sis is es sen - hy poth e sis is that in or der to per -
tial for any com plex life forms—yet form pho to syn the sis, plant cells
pho to syn the sis's high ly com plex swal lowed pho to syn the siz ing bac te -
proc ess is not yet ful ly un der stood. ria and turned them in to chlo ro -
Modern tech nol o gy has not even un - plasts, much as mod ern-day li chens
rav eled its de tails, let alone been are a sym bi ot ic com bi na tion of al gae
able to rep li cate it. and fun gi. However, the ques tion of
According to the the o ry of ev o lu - how bac te ria learned to car ry out
tion, this com plex proc ess is a re sult such a com plex proc ess as pho to syn -

The Evolution Impasse II