Exploiters pt 3 0.0 / 5 ? BiologyPracticalsUniversityNone Created by: TabithaCreated on: 21-03-15 10:46 Explain how to make a wet mount Two drops of sample, add cover slip, seal with vaseline, examine 1 of 19 Explain how to make a dry mount 1 loopful of water, take small amount of sample of loop from colony, mix, dry with bunsen 2 of 19 Procedures in Crystal violet stain Cover in stain for 20 sec, wash with water, blot dry 3 of 19 Give 4 lab rules Always wear lab coat, wash hands on leaving, don't eat/drink, use aseptic technique 4 of 19 Give symbol and conversion between millimetre and micrometre mm and um 1mm=1000um 5 of 19 Name 3 smaller measurements that micrometre nanometre (nm), Angstrom (A), pictometre (pm) 6 of 19 Name the samples observed in the practical Hay infusion pond water, spoiled fruit, growth on N-free agar, agar plates given 7 of 19 Name 3 microscopes Vickers, Leitz and Olympus 8 of 19 Name the turning bit with10-x100 maginifcation Objective lens 9 of 19 How to use the stage and why Raise as high as possible, focus by lowering, done so unlikely to crack slide 10 of 19 Give two facts about lenses Don't touch lens with fingers, always use immersion oil with x100 11 of 19 What was found on given agar plates? 65B Clusters (Straphlycoccus) Gram+, 16M bacillus (Ecoli) Gram -ve 12 of 19 Describe fungal hyphae Branching and filamentous, can be coenocytic (one) or divided into cells by septa 13 of 19 Name 2 spore arrangements Sporangiospores in a sproangium or conidiospores arranged in chains at end on conidiophore 14 of 19 4 common algal forms Microasterias (Wide and flat), Volvox (circular), Scenedesmus (Stacks of 4), Spirogyra (Blobs in tubes) 15 of 19 Describe Lactobacillus Rod shaped, can be in chains 16 of 19 Describe staphylcoccus spherical in random or grape like clusters 17 of 19 Describe streptococcus Chains of cocci 18 of 19 Example of common Protozoan Paramoecium (Ciliated protozoan) Contains Nucleus, cilla, and contractile vacuole 19 of 19
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