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Objective 4:
Photophosphorylation slideshow
Photophosphoryaltion
movie handout
Photophosphorylation Schematic
(diagram used in slideshow)
Electron Transport Chains
in Photosynthesis
Objective 5:
see above
Where
do all the H+ ions come from?
Photosynthetic Phosphorylation
Objective 6:
ATP Generation by Chemiosmosis
Objective 8:
C3 v. C4 Plants
Objective 9:
The Plant Body
Ligustrum slide - available in Study Center, click here
to test yourself
What does a Ligustrum leaf look like anyway?
Zea microscope slide - available in Study Center, click here to test yourself
Kranz anatomy
Dicot v. monocot leaves
Poa slide - available in Study Center
Leaves: Minimizing Water Loss
Gas exchange in plants
Objective 10:
Functions and types of roots
Leaf demo - available in Study Center
Leaf Venation
Objective 11:
Primary growth of a root (11c)
Objective 12:
How old is that twig?
Lenticels
Twig Self Test
An example: Horse Chestnut Morphology
Objective 13:
Vascular
cambium and rays (13a,b)
Xylem and phloem in trees
Tree growth rings (13c), more optional info
Cork (13c)
Optional Supplementary Material:
The
Chemistry of Autumn Colors
Plant tissue slideshow
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Leaf: Minimizing Water Loss
This scanning electron micrograph (SEM) shows a leaf surface on the
left that extends to where the leaf is sectioned, on the right. This
is a leaf of oleander (Nerium) and is an example of a plant
adapted to life in an arid environment.
Adaptations of its leaf include:
- thick cuticle
- multiple epidermal layers on the leaf's upper surface, labeled ME
- stomata in hair-lined depressions, where a higher humidity is maintained
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(click on image for larger version) |
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(click on image for larger version)
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These SEMs show the lower epidermis of leaves from eucalyptus and
palo-verde trees, both of which grow in arid environments. Notice the
heavy deposits of wax (W) that coat the leaves. This wax helps to reduce
water loss through the epidermis, which usually accounts for about 10%
of a plant's water loss. The unlabeled arrows point to stomata, on the
lower epidermis as is typical of leaves in arid climates.
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