1. Plant Physiology Plant Functions: Form & Function
1. capture energy & assimilate carbon
2. distribute nutrients & water
3. grow & develop
4. respond to the environment
5. reproduce

2. Plant Cell smallest functional unit
cell wall
plasma membrane
protoplast
organelles
nucleus/nucleoplasm
cytoplasm
Cytosol (gel)

3. Plasmalemma Unit Membrane & Fluid Mozaic Models
fig 1.17
Integral, Peripheral
pores, enzyme systems
Glycolipids
___________
Protein
____________
Phospholipid __

4. Plant Cell smallest functional unit
Nucleus -
Genetic Material DNA
Chromosomes
Double Membrane - pores
Nucleolus -
-> Ribosome production
(Protein production)

5. Plant Cell smallest functional unit
Cytoskeleton
3-D network
Microtubules
tubulin
Microfilaments
actin
Dynamic ->
Cytoplasmic Streaming
tubulin Actin

6. Plant Cell smallest functional unit
Mitochondrion -
double membrane cover
Cell respiration -> ATPs
glycolysis
Krebs Cycle

7. Plant Cell smallest functional unit
Chloroplast -
photosynthesis
“Endosymbiosis”

8. Plant Cell smallest functional unit
Plastids -
Protoplast ->
Chloroplast -
photosynthesis
Amyloplast -
starch storage
Chromoplast -
pigment storage
fig. 1.21

9. Plant Cell smallest functional unit
Microbodies
Oleosomes - lipid storage; mainly in seeds
1/2 membrane cover; from smooth ER
Peroxisomes - contain catalase; rid hydrogen peroxide
single layer membrane cover
Glyoxysomes - fatty-acid metabolism

11. Plant Cell smallest functional unit
Cell Wall - Primary
- Cellulose Microfibrils %
- Pectin 35%
- Glycans (10%)
forms X-linkages
between Microfibrils,
dynamic

12. Plant Cell smallest functional unit
Plasmodesmata -
continuation of
plasmalemma
between cells
Desmotubules -
continuation of ER

13. Plant Cell smallest functional unit
Primary Pit Field -
No secondary CW
Pits, Pit Pairs

14. Cells --> Tissues Parenchyma - photosynthesis; storage
(Chlorenchyma); undifferentiated cells
Collenchyma - support
Sclerenchyma - support
Xylem - (tracheids & vessels) conducting
water & minerals
Phloem - (seive tube elements &
companion cells); conducting organic food in
solution

15. Cells --> Tissues Epidermis - protective covering; replaced by
phlellem; (guard cells, cuticle)
Periderm - (Cork or phlellem cells); forms cork
cambium

16. Plant Development seed --> embryo --> adult plant

17. Largest Seed Known??

18. Adult Plant Body (angiosperm organs)
Meristems
Apical
primary growth
Lateral
secondary growth
vascular cambium
cork cambium

19. Adult Plant Body (angiosperm organs)
Root

20. Adult Plant Body (angiosperm organs)
Stem

21. Monocots vs. Dicots

22. Leaves Petiole & Blade

23. Leaves Petiole & Blade