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CLIL Project. Professional English for Clinical Microbiology Answer key Unit 1. Isabel Borja NILE 2011. Answer key Lesson 1.1 – Gram Stain. Activity 1 . Significance of Gram stain:
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CLIL Project Professional English for Clinical Microbiology Answer key Unit 1 Isabel Borja NILE 2011
Answer key Lesson 1.1 – Gram Stain
Activity 1 Significance of Gram stain: Gram stain is the main stain procedure in Microbiology. It enables us to know several things about bacteria in the smear: - GRAM-STAIN REACTION - SHAPE - ARRANGEMENTSof bacteria Bacteria are divided into two large groups depending on their Gram-stain reaction: the so-called Gram-positive (GP) that remains coloured after the decolouration procedure and the Gram-negative (GN) that do not retain the dye and take the colour of the counterstain. Those differences rely on the basis of cell wall structures. Considering together Gram reaction and shape we may set the four big groups of bacteria: GP bacilli, GP cocci, GN bacilli, and GN cocci.
Answer key Lesson 1.2 – The Microscope
Activity 2.a EYEPIECE ARM NOSEPIECE OBJECTIVE STAGE CLIPS COARSE FOCUS KNOB STAGE CONDENSER DIAPHRAGM LEVER FINE FOCUS KNOB CONDENSER STAGE KNOBS BASE
Activity 5 Image 1 B: cerebrospinal fluid Image 4 E: sputum Image 2 C: urethral discharge Image 3 A: vaginal discharge Image 5 D: urine
Answer key Lesson 1.3 – Preparing Culture Media
Answer key Lesson 1.4 – Bacterial Culture
Activity 3 Streak plate method: First spread Initial inoculum Signature Second spread Final spread
Activity 5 Activity 5.a - Bacterial standards: