Topic: Uptake and Transport in Plants
Objectives:
At the end of this topic the students should be able to:
1. Explain the take aim for an uptake and hex appliance in shews.
2. Recall the mechanism of uptake of water and mineral salts in plants.
3. recognise the mechanism of uptake of water and mineral salts in plants.
4. reap the coordinate and function of a root hair carrell.
5. Describe, with the aid of diagrams, the passageway of water through the root, stem and
leaves.
6. Define transpiration and denote to cell surfaces, air spaces and stomata.
7. Define transpiration pull and root pressure and relate to water uptake.
8. Identify and describe the factors that affect the rate of transpiration.
9. Describe the use of the potometer to measure the rate of transpiration.
10. Describe how wilting occurs.
11. Describe some adaptations of leaves, stems and roots to different environments.
12. Define translocation and relate to the translocation of employ chemicals and
systemic pesticides.
Textbook Reference: Biology for Life, pp. 244-249
Uptake and transport in plants
The inside of a plant is the scene of more than activity.
Substances are constantly being moved from one induct to another. In order for the plant to continue to carry bring out its activities these substances must be replaced. Most of the nutrients necessitateed by a plant are found outside the plant in the soil. These nutrients need to be taken from the soil and into the plant, hence the need for a mechanism of uptake. Following uptake, these materials need to be transported to the separate of the plant where they are needed. Additionally, food materials made in the leaves of the plant need to be transported to the other parts of the plant. As a result, a transport system becomes necessary for the plant.
There are three main mechanisms of uptake and transport in plants agile transport, osmosis and translocation. Active transport is involved in the...If you want to arouse a full essay, order it on our website: Orderessay
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