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13 Cards in this Set
- Front
- Back
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Xerophytic
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Plants with many coping mechanisms to deal with aridity.
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Trichomes
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Hairs on the shoot with a variety of functions.
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1) Pith
2) Primary Xylem 3) Vascular Cambium 4) Primary Phloem 5) Cortex 6) Epidermis |
Name the structures
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1) Secondary xylem
2) Vascular cambium 3) Secondary phloem 4) Cork cambium 5) Cork 6) Bark 7) Layers of periderm |
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Identify the difference between sporophyte and gametophyte life cycle phases.
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Gametophyte
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What phase can gametangia be found in?
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Only secondary xylem.
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What is wood?
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Everything peripherial of vascular cambium.
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What is bark?
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Diameter of cells. The diameter of the cells are larger in spring and summer because it is a period of more growth, thus the cells would need to transport more water... in winter it is in a period of slower growth, the the cells are smaller. The tropic don't have as drastic of seasons.
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Why is it so easy to distinguish layers of secondary xylem and why would they be less apparent in the tropics?
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Aridity
Heat Light Soil Water High CO2 |
What helps transpiration?
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Humidity
Soil Water Low |
What inhibits transpiration?
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They need to present as many chloroplast as possible to the outer surface of the leaf for maximum light absorption.
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Why is palisade layer arranged the way it is?
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Production of photosynthates
Interchange of gases Food Storage Water evaporation |
Functions of leaves.
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