BMB 240 Lecture Notes - Lecture 3: Eukaryote, Pieve, Photosynthesis

• School: University of Maine
• Department: Micro and Molecular Biology
• Course: BMB 240
• Professor: Catherine Hopper

Document Summary

Lecture 3 bacterial and archaea structure: bacterial cellular morphology, rods or bacilli: a cell that is termed a rod. They vary in actual form, such as blocky, spindle-shaped: spheres or cocci: spherical or ball-shaped. Vary, can be oval, bean shaped: commas or vibrio: a rod hat is gently curved, spirilla: slightly curved or spiral shaped cylinder, hyphae: have branches, cellular arrangement (cocci and bacilli) f. i. Strepto: variable number of coci in chains f. ii. Staphylo: globs: bacterial cell structure overview, external structures a. i. Primary role is motility but also ashesion and virulence factors. a. i. 2. Four different, help identification along with virulence factor a. i. 2. b. Exert forces on the ms and c rings. a. i. 4. c. Organism is able to move in a straight direction a. i. 5. b. Chemotaxis: movement to chemical or from toxin. a. i. 7. a. Cells move up gradient toward nutrient source. a. i. 7. b. Cells will move away from repellants, toxins ect. a. i. 7. c. Capsule: well organizaed and not easily removed from cell.