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examonereviewquestions - 1 2 What forms Branch roots 3...

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1. 2. What forms? Branch roots: 3. Function of: Root Hairs – help in direct nutrient uptake by increasing the surface area of the root Guard Cells – control the stomatal openings by accumulating K+ which causes water to enter the cell through osmosis causing the guard cell to swell and open the stomata Parenchyma - most common plant tissue. thin-walled cells have large vacuoles and distinct intercellular spaces. The most important function of the parenchyma cells of roots and stem is the storage of food and water, the intercellular air spaces permit gaseous exchange. Auxin - coordinate development at all levels of plants, from the cellular level to organs and ultimately the whole plant. Cytokinin - stimulate cell division Ethylene - H2C=CH2 Stimulates the release of dormancy, Stimulates shoot and root growth and differentiation (triple response), May have a role in adventitious root formation. Stimulates leaf and fruit abscission. Stimulates Bromiliad flower induction. Induction of femaleness in dioecious flowers. Stimulates flower opening. Stimulates flower and leaf senescence. Stimulates fruit ripening.
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