Plant structure, growth & development

Plant structure, growth & development - Plant...

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Plant structure, growth & development Page 1 of 6 Plant structure, growth & development Readings: Chapter 35: pp 738-754 Self quiz 1-8 Plant structure 1. Plants have cells grouped into tissues and tissues grouped into organs (a) Tissues (b) Organ 2. There are three plant organs (Fig. 35.2) (a) Roots anchor plants, absorb water & nutrients & may store sugars & starches. (i) Taproot systems (ii) Fibrous root systems (iii) Root hairs (iv) Five examples of modified roots (see Fig. 35.4) (b) Stems have nodes, internodes, apical buds & axillary buds (i) Nodes (ii) Internodes (iii) Axillary buds (iv) Apical buds (v) Apical dominance
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Plant structure, growth & development Page 2 of 6 Four examples of modified stems (Fig. 35.5) (c) Leaves have a blade, a petiole & veins and are the main sites of photosynthesis (Fig 35.6). Four examples of modified leaves (Fig. 35.7) 2. Each plant organ can have three types of tissue systems (Fig. 35. 8) (a) Dermal tissue is the outer protective covering (b) Vascular tissue, called the stele transports materials
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Plant structure, growth & development - Plant...

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