Acid fast bacteria Study guides, Class notes & Summaries

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...

Describe the role of a ribosome in the production of a polypeptide. /3 - Correct answer1. mRNA binds to ribosome; 2. Idea of TWO codons/binding sites; 3. tRNA with ANTICODONS binds; 4. (Catalyses) formation of PEPTIDE bond between AMINO ACIDS (held by tRNA molecules); 5. Moves along (mRNA to the next codon); Describe the structure of glycogen. /2 - Correct answer-1. Polysaccharide of α-glucose; OR polymer of α-glucose; 2. (Joined by) glycosidic bonds OR Branched structure; NHE3 ac...

beta-oxidation correct answer: enzymes repeatedly split off pairs of they hydrogenated carbon atoms that make up a fatty acid and join each pair to coenzyme A to form acetyl-CoA Chloroplasts correct answer: light harvesting structures found in photosynthetic eukaryotes; synthesize a few polypeptides compare and contrast archaeal flagella with bacterial flagella correct answer: archaeal are about half as thick as bacteria; not hollow; lack a central channel; flow together; powered by ATP...

Uark microbiology lab practical 1 rated A Coccus A spherical bacterium. Bascillus Rod shaped bacteria Spirillum A spiral-shaped bacterium. Uses of good bacteria on our bodies, in yogurt, and can be used to clean up oil and radiation colony visible mass of cells Innoculation putting bacteria into a medium what is the purpose of aseptic technique -no contaminating organisms are introduced into culture materials during handling or inoculation -handler and other people are not contaminated by ...

Microbiology The study of microorganisms. The science which treats the nature, life and action of microorganisms. Me Him Contamination The state of being soiled or infected by contact with infectious organisms or other material Microns A unit of measurement; 1/1000 of a millimeter or 1/25,000 of an inch; usually designated by the Greek letter "u". Protoplasm Describes all living materials in a cell. A thick mucous-like substance that is colorless and translucen...

What term describes the morphology of organisms that vary in shape and size? - Pleomorphic Capsules are the basis of which test? - Serotyping A mucoid colony on blood agar medium indicates that which of the following characteristics may be present? - Organism has a capsule. What are dark staining granules called? - Metachromatic Which of the following organisms are non-motile? - Shigella and Klebsiella In the bacterial growth cycle, growth ceases because nutrients are exhausted or toxic me...

BIOS 242 Week 3 Assignment; Lab 5 of 14 Onsite; Differential Staining Learning Objectives: Explain the principle of differential staining Apply differential staining to identify bacteria Differential stain uses two or more stains to specifically stain certain structures or cellular components which cannot be easily observed using simple stains. Differential staining principles are based upon the specific chemical nature and composition of cellular components and therefore, different s...

Fungi - cell wall made of chitin; Eukaryote Algae - cell wall made of silicates, eukaryotic Protozoa - Eukaryote Bacteria - Prokaryotic Virus - Acellular; only reproduce if they are inside of a living cell What allows a substance to cross a membrane - Protiens Substances that will never pass through a membrane - Charged substances Passive movement processes - No ATP needed 1. Diffusion 2. Facilitaed Diffusion 3. Osmosis Active Transport processes - Uniport Aniport Sy...

PHPR 813 Study Questions with 100% Correct Verified Answers Is Mycobacterium gram positive or negative? gram positive (purple) Tell me something about Mycobacterium's cell wall it has a high lipid content (wax-like appearance) - mycolic acids - lipoarabinomannan Acid fast stain is used to differentiate this bacteria

Absortion - Upon encountering a susceptible host the virus is adsorbed by binding to specific receptors on the cell membrane. These receptors are similar to the glycoproteins found on the surface of viral coat acellular infectious agents - viruses, viroids, prions acid fast stain - Differentiates acid-fast bacteria (pink) from non-acid-fast bacteria (blue). detects The agents of tuberculosis and leprosy. Agricultural Microbiology - concerned with the relationships between microbes and dom...