Gram stained bacteria - Study guides, Class notes & Summaries

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...

What sticky layer allows bacteria to attach to surfaces? a. peptidoglycan b. outer membrane c. slime layer d. pilli Correct Answer-c. slime layer Archael cell walls a. do not up take crystal violet b. contain peptidoglycan and specialized polysarcharides c. contains specialized polysarcharides but does not contain peptidoglycan d. cannot be gram stained Correct Answer-b. contain peptidoglycan and specialized polysarcharides Prokaryotic and eukaryotic ribosomes a. are the same siz...

CMB Final UPDATED Exam Questions and CORRECT Answers The volcanic laboratory experiments performed by Stanley Miller were able to synthesize which of the following biomolecules? - Correct Answer- amino acids The differential staining of bacteria into Gram+ and Gram- stained samples is due to which of the following structural component of the bacteria? - Correct Answer- the makeup of their cell wall Which of the following is not a 'universal' characteristic all living cells? - Correc...

MCB 2610 Lab Practical 2 Question and answers correctly solved 2024/2025 MCB 2610 Lab Practical 2 simple stain - correct answer single base dye heat fix, let cool, CV direct simple stain - correct answer colors the bacteria negative simple stain - correct answer colors the background leaves bacteria unstained gram stain is a differential or simple stain - correct answer differential gram negative bacteria color morphology - correct answer stained pink thin peptid...

NDAEB Exam Questions with Correct Answers What is an oral indication of bulimia? - Answer-Pattern of erosion on lingual surfaces of teeth What are the three potential complications of orofacial piercings? - Answer-chipped and broken teeth and a serious infection at the sites of the piercings What are the 3 primary shapes of bacteria? - Answer-1. Cocci (spherical) 2. Bacilli (rod) 3. Spirochetes (spiral) What is the staining process for separating bacteria? - Answer-Bacteria that are...

Koch and his Postulates - 1. the microorganism must be present in every case of the disease but absent in healthy individuals 2. the suspected organism must be isolated and grown in a pure culture 3. the same disease must result when the isolated microorganism is inoculated into a healthy host 4. the same microorganism must be isolated again from the diseased host Developments due to Koch's Postulates - 1. Agar (Fanny Hess) 2. Petri Dish (Richard Petri) 3. Nutrient broth and nutrient aga...

Haemophilus influenzae is a Gram-negative coccobacillus. If you looked at a Gram-stained culture using a light microscope, you would expect to see CORRECT ANSWER • pink, very short rods. If the decimal reduction time is 1 minute, how many minutes would it take to kill all organisms when starting with 100,000 organisms? CORRECT ANSWER 6 A research laboratory is investigating environmental factors that would inhibit the growth of Archaea. One question they have is if adding the antibiotic ...

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...

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 ...

ADAA Exam Questions and Answers 100% Pass Microbiology is the study of? - Correct Answer ️️ -Small life forms ___________ Is not apart of understanding the physical and chemical properties of microorganisms for the purposes of infection control. - Correct Answer ️️ -The life cycle of microorganisms. Microorganisms are ___________? - Correct Answer ️️ -Less harmful than helpful to humans. Yeasts are a type of? - Correct Answer ️️ -Fungi. _____________ is not considered sig...