Bacterial shapes - Study guides, Class notes & Summaries

Bacteria shapes - Cocci, bacilli, vibrios (comma shaped), spirilla (spiral), pleiomorphic (various shapes) adherence molecules to stick to surfaces - - mediated by pili, fibers of pilin proteins possess other proteins on their tips for sticking - a sex pilus is used for conjugation - some microbes use an extension of the cell envelope tipped by a "holdfast" of paysaccharides 3 parts of flagella - - filament - hook protein - basal body active transport - - all microorganisms active tr...

EXAM 1 BIOS 242- CHAMBERLAIN ALREADY PASSED DNA is replicated in the ___ nucleus RNA is replicated in the ___ cytoplasm what is the first step in viral replication? penetration/adhesion (attaches to membrane using spikes) what is the second step in viral replication? uncoating what is the third step in viral replication? replication what is the fourth step in viral replication? assembly what is the fifth step in viral replication? maturation what is the sixth step in viral replication? r...

1. What determines if a bacterial cell is Gram-positive or Gram-negative? Gram-negative bacteria are surrounded by a thin cell wall, while gram-positive bacteria lack a cell wall. 2. In this lab, both viruses and prions were introduced as acellular organisms. Do some research and describe one other type of acellular organism. What characteristics about this organism classify it as acellular? Another example of an acellular organism would be viroids. Viroids are small, single- stranded, cir...

UAMS Microbiology Exam 1 Questions & Answers 2024/2025 Name the different organism morphologies - ANSWERSCoccus Coccobacillus Vibrio Bacillus Spirillum Spirochete Name the bacterial arrangements - ANSWERSCoccus diplococcus staphylococci streptococci sarcina tetrad Describe a Filamentous Rod - ANSWERSA long string of bacillus bacteria Describe a Fusiform Rod - ANSWERSBacteria that is pointed on the ends Describe Pleomorphic Rods - ANSWERSDifferent lengths and shapes of ...

4 stages in a bacterial growth are: - Lag phase, Exponential (Log), Stationary, Death Acid-fast staining - (differential staining) Add carbol fuchsin (primary stain) then heat over flame for few minutes. 2.Wash and then add a decolorizer (5% HCl and 95% ethyl alcohol) to remove primary color from nonacid-fast organisms. Acid-fast bacteria will retain the primary color. Alexander Fleming - discovered penicillin (the first antibiotic discovered!) Anton Van Leeuwenhoek - was the first to obser...

Lack a nucleus or membrane bound organelles, usually unicellular. Smaller and simpler than most eukaryotic cells. Contain two types of domain Bacteria and Archaea. - Prokaryotic cells Ridged cell wall contains peptidoglycan. Includes a nucleoid (no nucleus) with no membrane-bound organelles. Multiply by binary fission - cell enlarges then divides - Bacteria Bacterial shapes: Coccus Rods (bacillus) Coccobacillus Vibrio Spirillum Spirochete - - Coccus - spherical - Rod (bacillus) - rod ...

mcb 2610 exam 3 Question and answers rated A+ 2024/2025 mcb 2610 exam 3 shapes of bacteria - correct answer coccus, bacillus, vibrio, spiral, pleomorphic Cellular Organizations - correct answer hyphae, mycelia, trichomes what are advantages of multicellular arrangements? - correct answer protection and higher likelihood of survival whats smaller: bacterial or eukaryotic cells? - correct answer bacterial cells what is a small, closed, circular DNA molecule that replicates...

Lack a nucleus or membrane bound organelles, usually unicellular. Smaller and simpler than most eukaryotic cells. Contain two types of domain Bacteria and Archaea. - ANSWER Prokaryotic cells Ridged cell wall contains peptidoglycan. Includes a nucleoid (no nucleus) with no membrane- bound organelles. Multiply by binary fission - cell enlarges then divides - ANSWER Bacteria Bacterial shapes: Coccus Rods (bacillus) Coccobacillus Vibrio Spirillum Spirochete - ANSWER - Coccus - spherical ...

HLST 200 Final Exam Questions With 100% Verified Answers chain of infection infectious agent, reservoir, portal of exit, mode of transmission, portal of entry, susceptible host Infectious agents (pathogens) The types of microbes that can cause infections are viruses, bacteria, fungi, protozoa, & helminths (parasitic worms). Viruses Tough, Tiny pathogens that are 10 to 100 times smaller than bacteria & much smaller than fungi. Most Common Viruses filoviruses, hepatitis, herpes...

What does RDA stand for? - Recommended Dietary Allowances Fats should be how much of your diet? - 30% A good diet includes approx. how much protein? - 10-35% Body is how much water? - 2/3 Define Hygiene. - applied science that deals with healthful living. Public Hygiene. - significantly helps promote and preserve the health of the community. Personal Hygiene - Your personal system for maintaing your cleanliness and health. Halitosis - bad breath What is Ergonomics - a science used to stu...