bmorphology-1 - BACTERIOLOGY 1. BACTERIAL MORPHOLOGY A....

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
BACTERIOLOGY 1. BACTERIAL MORPHOLOGY A. Study of structure, appearance. B. Colony morphology - growth characteristics C. Microscopic morphology - cell characteristics 2. COLONY MORPHOLOGY A. Colony 1. Clump of organisms growing on the surface of solid medium. 2. Descendants of a single cell 3. Vary in appearance - characteristic of a genus B. Characteristics observed : 1. Shape, size 2. Margin 3. Elevation 4. Surface texture 5. Light transmitting property (color) 6. Consistency 3. MICROSCOPIC MORPHOLOGY A. Size B. Shape C. Arrangement D. Cell Structure 1. Basic cell structure 2. Special cell structures
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4. SIZE A. Measured in micrometers ( μ m) 1000 μ m = 1mm B. Ave. Range : D = 0.1 μ m to 2 μ m L = 0.1 μ m to 8 μ m 4. CELL SHAPE, ARRANGEMENT A. Three groups according to shape. In addition, variation of arrangement is characteristic of a genus. 1. Cocci (us) a. Spherical, oval, egg shaped, bean shaped b. Size and shape varies. c. Singles, pairs, irregular clusters, tetrads, cubical packets of 8. 2. Bacilli (us) a. Elongated, cylindrical, rod-like b. Vary in diameter, length, shape of ends, arrangement. c. Singles, pairs, chains, parallel packets. 3. Spirals a. Curved rods b. Vary in diameter, length, number of curves, tightness of curves, flexibility. c. Three groups of spirals: 1. Vibrios - single curve, comma shaped 2. Spirillum - rigid , two or more curves, cork screw shape 3. Spirochetes - flexible , two or more curves, wavy - move by flexing bodies.
Background image of page 2
5. CELL STRUCTURE (Handout available for students) A. Basic cell structures - found in all typical eubacteria B. Special cell structures - found only on certain groups of bacteria 6. OBJECTIVES A. Identify cell structures in drawing B. Describe function each cell structure C. Describe composition each cell part 7. BASIC CELL STRUCTURES : A. CELL WALL 1. Properties:
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 9

bmorphology-1 - BACTERIOLOGY 1. BACTERIAL MORPHOLOGY A....

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online