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91 Structure of Angiospermatophytes

Page history last edited by Jay 11 years, 5 months ago

Students, when you draw/write answers for these assessment statements, remember that your goal is to make a little lesson to help others (& yourself!) learn.  Think about what diagram(s) or example helps you the best but use something other than Click4biology or Taylor ppt

 

 

 

9.1 Plant structure and growth

 

 

9.1.1 Draw and label plan diagrams to show the distribution of tissues in the stem and leaf of a dicotyledonous plant. (Louis)

Either sunflower, bean or another dicotyledonous plant with similar tissue distribution should be used. Note that plan diagrams show distribution of tissues (for example, xylem, phloem) and do not show individual cells. They are sometimes called “low-power” diagrams.

 

9.1.2 Outline three differences between the structures of dicotyledonous and monocotyledonous plants. (Eunji)

Teachers should emphasize three differences between monocotyledonous and dicotyledonous plants (examples include: parallel versus net-like venation in leaves, distribution of vascular tissue in stems, number of cotyledons, floral organs in multiples of 3 in monocotyledonous versus 4 or 5 in dicotyledonous, fibrous adventitious roots in monocotyledonous versus tap root with lateral branches in dicotyledonous).

 

9.1.3 Explain the relationship between the distribution of tissues in the leaf and the functions of these tissues. (Eunji)

This should be restricted to dicotyledonous plants. The functions should include: absorption of light, gas exchange, support, water conservation, and the transport of water and products of photosynthesis.

 

9.1.4 Identify modifications of roots, stems and leaves for different functions: bulbs, stem tubers, storage roots and tendrils. (Eunji)

 

9.1.5 State that dicotyledonous plants have apical and lateral meristems. (Jennifer)

Apical meristems are sometimes referred to as primary meristems, and lateral meristems as cambium. Meristems generate new cells for growth of the plant.

 

9.1.6 Compare growth due to apical and lateral meristems in dicotyledonous plants. (Eunji)

 

9.1.7 Explain the role of auxin in phototropism as an example of the control of plant growth. (Jinsu)

 

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