Negative gram stain - Study guides, Class notes & Summaries

MCB2010:Microbiology Final Exam Questions and Answers 2024/25 Update It forma a dark image against a bright background. it can be used to observe live or preserved, stained or unstained specimens. EX: bacteria is not living -IT CANNOT BE USED TO OBSERVE INTRACELLULAR STRUCTURES SUCH AS ENDOSPORES, DNA, RIBOSOMES, ETC OF LIVING CELLS Choose matching term fluorescence microscope phase contrast microscope dark field microscope bright field microscope Don't know? 1 of 189 Definition ...

Staphylococcus is a gram __________ cocci that is catalase ___________ - ️️positive positive Micrococcus is a gram __________ cocci that is catalase ___________ - ️️positive, positive Streptococcus is a gram __________ cocci that is catalase ___________ - ️️positive, negative Enterococcus is a gram __________ cocci that is catalase ___________ - ️️positive, negative Abiotrophia, Granulicatella, Leuconosoc, Pediococcus, Aerococcus, Gamella, and Lactococcus are all gram __...

AGACNP Exam Latest Update 2024 / 2025 Gram positive bacteria features? - ANSWER-thick cells walls, retain purple color after staining Gram negative bacteria features? - ANSWER-thin cell walls, do not retain violet stain What are the gram positive bacterias? - ANSWER-staphylococcus, streptococci, enterococci, bacilli, corynebacterium What are the gram negative positive bacterias? - ANSWER-serratia marcescens, e coli, klebsiella, pseudomonas, proteus mirabilis, moraxella catarrhalis, acinetoba...

Pulmonary ROSH Review; Questions and Answers 100% Solved A 25-year-old man presents for evaluation of fever and cough. He reports last week that he was diagnosed with influenza. In the last 2 days he developed a worsening cough productive of large amounts of sputum. Vital signs are T 101°F, HR 98, BP 120/60, RR 18, and 95% oxygen saturation on room air. His chest X-ray demonstrates a lobar infiltrate in the left lower lobe. Which of the following would you most likely expect to see o...

Infectious agent - ANSWERa pathogen, such as a bacterium or virus that can cause a disease Bacteria - ANSWER- Most significant and most commonly observe infection-causing agent in health care institutions - Categorized by shape Cocci (spherical) Bacilli (rod-shaped) Spirochetes (corkscrew) - Gram positive, have thick walls that resist the loss of color. Will stain violet - Gram negative, complex cell walls that can be decolorized by alcohol. Will not stain - Antibiotics are classified ...

Portage Learning BIOD 171 Microbiology Lecture Exam Key 1-6 Exams 1. What are the two major types of nucleic acids and their roles? DNA- deoxyribonucleic acid RNA- Ribonucleic acid DNA- Cellular life has DNA and a role that DNA has is long-term storage of information, it holds the characteristics of living organisms. RNA- Is the carrier of information in form of amino acid sequence. It converts the information in the DNA and synthesizes proteins Tru...

Based on the nomenclature for bacterial genes and proteins, which of these seems like a name for bacterial enzyme malate dehydrogenase? a.) Mdh b.) mdh c.) mdh (italicized) d.) Mdh (italicized) - correct answer a.) Mdh The first person to visualize individual microbes was a.) Antonie van leeuwenhoek b.) Louis Pasteur c.) Robert Koch d.) Robert Hooke - correct answer a.) Antonie van leeuwenhoek What is the correct order of reagents in the Gram stain? a.) Crystal violet, iodin...

Hershey and Chase performed an experiment in order to determine how bacteriophages infect bacteria. What did they find? CORRECT ANSWER The bacteriophage injects DNA into the host cell. This was found because, after centrifugation, the pellet was radioactive The largest difference between a Gram + and Gram - bacterial cell is: CORRECT ANSWER The gram + cell has a much thicker peptidoglycan layer Why does a Gram + cell stain blue/purple in a gram stain? CORRECT ANSWER The Gram + cell stains ...

Mitochondria similarity to prokaryotes (bacteria) ~~> Circular DNA and 70S ribosomes 70S ribosomes subunits are ~~> 50S and 30S 70S ribosomes found in ~~> Prokaryotes (bacteria & archaea) (and mitochondria/chloroplasts) 80S ribosomes found in ~~> Eukaryotic cells (algae, fungi, protozoa, helminths and animals) 80S ribosomes subunits are ~~> 60S and 40S Bacilli 2 | P a g e | © copyright 2024/2025 | Grade A+ Master01 | September, 2024/2025 | Latest update ~~&g...

>100,000 CFU/mL of a gram-negative bacilli were isolated on MacConkey from a urine specimen. Biochemical results are as follows: glucose: acid, gas produced indole: negative urea: positive TDA: positive H2S: positive The organism is most likely: a Morganella morganii b Proteus mirabilis c Proteus vulgaris d Providencia stuartii - b Proteus mirabilis b Morganella and Providencia do not produce H2S; the indole reaction differentiates P mirabilis and P vulgaris. 13 An Enterococcus ...