Transcript TEST REVIEW Roots, stems, leaves and Photosynthesis

active
xylem
dead
xylem
phloem
What is vascular
tissue exactly?
Photosynthesis:
1) The 2 substances required
for photosynthesis are:
carbon dioxide (CO2 ) and
water (H2O)
2) The main product of
photosynthesis is:
glucose (C6H12O6)
3) The waste product is:
oxygen (O2)
Open stoma
Please take out your homework (DR 5.1) and copy
the following notes into your science journal.
Stomata
guard cells
• Opening formed by two ____________.
underside of the leaf.
• Found on the ____________
CO2 to enter the leaf.
• Allow _______
O2 and _____________
• Allow _______
water vapor to exit.
at night
• Conserve water by closing __________.
Closed stoma
For photosynthesis to
take place, leaves must
have a constant supply
of: CO and water
2
Stoma
Guard cells
Leaves must
get rid of:
O2 and excess
water vapor
A.
B.
C.
D.
E.
F.
G.
H.
Cuticle
Epidermis
Stomata (guard cells)
Palisade layer
Vein
Spongy layer (air space)
Xylem
Phloem
A. Cuticle
B. Epidermis
C. Stomata (guard cells)
D. Palisade layer
E. Vein
F. Spongy layer (air space)
G. Xylem
H. Phloem
Photosynthesis
Cellular Respiration
• light energy  food
• food  usable energy
• CO2 in; O2 out
• O2 in; CO2 out
• occurs in chloroplasts
(only in plants)
• animals do this all the
time; plants ALSO do it
when they’re not doing
photosynthesis.