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Stems, leaves, roots and photosynthesis

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Presentation on theme: "Stems, leaves, roots and photosynthesis"— Presentation transcript:

1 Stems, leaves, roots and photosynthesis

2 Plant body

3 Modified stems/ Stolon

4 Modified stems/ Rhizome

5 Modified stems/ Tuber

6 Modified stems/ Bulb

7 Modified stems/ Corm

8 Leaf A leaf is a stem appendage with a bud in its axil
Major function is as a photosynthetic organ

9

10 Leaf arrangement on stem
Alternate Opposite whorled

11 Leaves Blade Petiole Leaf type
Simple compound A leaf is a stem appendage with a bud at its base.

12 Leaf venation Parallel ( most monocots) Pinnate Palmate Net
dichotomous

13 Parallel

14 Pinnate venation, simple leaf

15 Palmately divided, palmately veined

16 Palmate venation, simple leaf, crenate margin

17 Dichotomous

18 Palmate venation, simple blade, entire margin, peltate

19 Double pinnate compound leaf

20 palmately compound, pinnate veined

21 Specialized leaves Plantlets Insectivory Spines tendrils

22 roots

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24 Tap Fibrous

25 Photosynthesis/ Respiration
6CO2 + 6H2O+ sunlight+ green plant C6H12O6 + 6O2 + H2O Carbon dioxide plus water plus sunlight and green plant yields sugar plus oxygen plus water Cellular Respiration C6H12O6 + 6O2 + 6H2O CO2+ 12H2O + 36 ATP Sugar plus oxygen plus water yields carbon dioxide plus water plus ATP Don’t worry about balancing the equations just know what happens on each side of the equation

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