Plants


 * [|Curriculum Summary Link] **

**Resources**
American Society of Plant Biologists: Principles of Plant Biology USDA PLANTS Database [|What tree is it?]

[|Plant dichotomous key]


 * Topic 9: Plant science (11 hours) **
 * 9.1 Plant structure and growth **
 * 4 hours **
 * || ** Assessment statement ** || ** Obj **  ||
 * 9.1.1 || Draw and label plan diagrams to show the distribution of tissues in the stem and leaf of a dicotyledonous plant. || 1  ||
 * 9.1.2 || Outline three differences between the structures of dicotyledonous and monocotyledonous plants. || 2  ||
 * 9.1.3 || Explain the relationship between the distribution of tissues in the leaf and the functions of these tissues. || 3  ||
 * 9.1.4 || Identify modifications of roots, stems and leaves for different functions: bulbs, stem tubers, storage roots and tendrils. || 2  ||
 * 9.1.5 || State that dicotyledonous plants have apical and lateral meristems. || 1  ||
 * 9.1.6 || Compare growth due to apical and lateral meristems in dicotyledonous plants. || 3  ||
 * 9.1.7 || Explain the role of auxin in phototropism as an example of the control of plant growth. || 3  ||


 * 9.2 Transport in angiospermophytes **
 * 4 hours **
 * || ** Assessment statement ** || ** Obj **  ||
 * 9.2.1 || Outline how the root system provides a large surface area for mineral ion and water uptake by means of branching and root hairs. || 2  ||
 * 9.2.2 || List ways in which mineral ions in the soil move to the root. || 1  ||
 * 9.2.3 || Explain the process of mineral ion absorption from the soil into roots by active transport. || 3  ||
 * 9.2.4 || State that terrestrial plants support themselves by means of thickened cellulose, cell turgor and lignified xylem. || 1  ||
 * 9.2.5 || Define // transpiration // . || 1  ||
 * 9.2.6 || Explain how water is carried by the transpiration stream, including the structure of xylem vessels, transpiration pull, cohesion, adhesion and evaporation. || 3  ||
 * 9.2.7 || State that guard cells can regulate transpiration by opening and closing stomata. || 1  ||
 * 9.2.8 || State that the plant hormone abscisic acid causes the closing of stomata. || 1  ||
 * 9.2.9 || Explain how the abiotic factors light, temperature, wind and humidity, affect the rate of transpiration in a typical terrestrial plant. || 3  ||
 * 9.2.10 || Outline four adaptations of xerophytes that help to reduce transpiration. || 2  ||
 * 9.2.11 || Outline the role of phloem in active translocation of sugars (sucrose) and amino acids from source (photosynthetic tissue and storage organs) to sink (fruits, seeds, roots). || 2  ||


 * 9.3 Reproduction in angiospermophytes **
 * 3 hours **
 * || ** Assessment statement ** || ** Obj **  ||
 * 9.3.1 || Draw and label a diagram showing the structure of a dicotyledonous animal-pollinated flower. || 1  ||
 * 9.3.2 || Distinguish between // pollination //, // fertilization // and // seed dispersal // . || 2  ||
 * 9.3.3 || Draw and label a diagram showing the external and internal structure of a named dicotyledonous seed. || 1  ||
 * 9.3.4 || Explain the conditions needed for the germination of a typical seed. || 3  ||
 * 9.3.5 || Outline the metabolic processes during germination of a starchy seed. || 2  ||
 * 9.3.6 || Explain how flowering is controlled in long-day and short-day plants, including the role of phytochrome. || 3  ||