BSC 2011C Chapter Notes - Chapter 29: Flowering Plant, Gymnosperm, Cuticle
Document Summary
Land plants enabled other life-forms to survive on land. Formation of a phragmoplast: many species of charophyte algae inhabit shallow waters around the edges of ponds and lakes, where they are subject to occasional drying, terrestrial adaptations e. i. Sporopollenin durable polymer layer in charophytes that prevents exposed zygotes from drying out e. ii. Cuticle epidermal polymers that act as waterproofing e. iii. Stomata specialized pores which support photosynthesis by allowing the exchange of co2 and o2: derived traits of land plants f. i. Localized regions of cell division at the tips of roots and shoots f. i. 2. f. i. 3. f. i. 4. Below grown, roots obtain h2o / minerals f. ii. Gametophytes (haploid) and sporophytes (diploid) gives rise to each other f. ii. 2. Spores reproductive cells that can develop into a new haploid organism without fusing with another cell f. ii. 3. Multicellular 2n individual alternates with multicellular n individual f. iii. Multicellular organs in the sporophyte that produce spores. Sporocytes diploid cells (spore mother cells) within a sporangium f. iii. 3.
