BIOA02H3 Lecture Notes - Lateral Root, Root Hair, Parenchyma
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BIOA02H3 Full Course Notes
Verified Note
43 documents
Document Summary
Freom tree to seed: transport in plants, plant nutrition and soils, plant defense, plant life on the edge. Lecture 4 notes (plant cells and plant tissues: differentiated cells, complex plant tissues, epidermis-protection, gas exchange, uptake. Epidermal hairs (e. g lateral root, root hair, root cap, root epidermis) Have 3 different types: periderm-protection, gas exchange. Perennial (living for several years)plants-wear and tear of epidermis. Dead at maturity, wall of lignin (anti-microbial), suberin(wax- like to go against desiccation: xylem-transport, support, storage. Continuous system transporting water and minerals form roots ot rest of plants. Water flows through adjacent pits from cell to cell. Water flows through openings-perforations, and pits from cell to cell. Annular vessel, spiral vessel, scalariform vessel, pitted vessel. All tracheids, vessels, parenchyma, fibers are lignified=hard,sturdy,wood: phloem-transport. 2 types: sieve tube memebers and companion cells sieve tube members (transport) Control both companion cells and sieve cells.
