Exploiters pt 2 0.0 / 5 ? BiologyPracticalsUniversityNone Created by: TabithaCreated on: 20-03-15 17:06 Define Symbiosis association between organisms attached to each other for mutual benefit 1 of 22 Bacteria in root nodules Rhizobium 2 of 22 How do the roots attract bacteria? Flavonoids 3 of 22 Enzyme in Rhiozbium that fixes nitrogen? Nitrogenase 4 of 22 Quick explanation of how bacteria enter root Root hair covered in free living bacteria, infection thread formed curls allowing rhizbia to enter, spread to adjacent cells and mulitplies 5 of 22 Both names of Legume Family Leguminosae Fabaceae 6 of 22 Sub families of Fabaceae Papilionoideae. Caesalpiniodeae, Miniosoideae 7 of 22 Explain the legume problem Large potential, but unpredictable yields due to annual need to N-fix, might not reach required level 8 of 22 Use of Nodulation in the future add N-fixation to cereals to save on fertilizers 9 of 22 Petiole? Stalk joining leaf to stem 10 of 22 Axillary Bud Embryonic shoot thats at junction b/w stem and petiole 11 of 22 Apical Meristem Undiff tissue sin buds and growing tips 12 of 22 Stipule Small leaf like apprendages (in pairs) at base of stalk 13 of 22 Stem node where leaves emerge from stem 14 of 22 Internode stem b/w two 2 stem nodes 15 of 22 Monocot leaf, stem and flower description Parallel veins to main, strap-like leaf (sugar cane), Numerous bundles scattered throughout stem, flowers in 3's 16 of 22 Dicot leaf, stem and flower description Branched (veticulet) veins, can trace smallest to the main vein, bundles arranged in ring, flowers in 4 or 5s 17 of 22 Method to see vascular bundles Add stain Phloroglucinol and conc. HCl for 5 mins, Wash in 70% alcohol and mount in dilute glycerine 18 of 22 Red colour indicts Lignin, What does it do? Integral part of cell walls 19 of 22 3 examples of monocots Maize, Sugar Cane, Hordeum Vulgae (Barley) 20 of 22 3 examples of dicot Marrow (cucurbita), Rose, Oak (Quercus) 21 of 22 Whats a Pulvinus Joint like thickening at each petiole (common in Mimosa) 22 of 22
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