Peptidoglycan Study guides, Class notes & Summaries

Bio 102 exam 1 WVU Salihu Latest Update 100% Pass Prokaryote evolution of cells: 3.5 billion years ago Prokaryote size of the cell: small Prokaryote unicellular Prokaryote organelles: absent Prokaryote Location of genetic information: nucleoid region Prokaryote DNA Structure: circular (usually one chromosomes) Prokaryote Reproductive strategy: asexual Prokaryote oxygen requirement: anaerobic (doesn't require oxygen) Eukaryote evolution of first cell: 1.5 billion ye...

MIC 102 Exam Questions with Correct Answers What are the three main subgroups of Eukaryotes? - Answer-Algae, Protozoa, Fungi What subgroup does Algae and Protozoa make? - Answer-Protists DESCRIBE THE ROLE OF A PLASMA MEMBRANE AND A CELL WALL. - Answer- What's the difference between Basic & Differential Stain? - Answer-Basic Stain: Allows you to determine the basic structure of a bacteria (rod, etc) Differential Stain: Uses more than one stain --> most popular: the gram stain. ...

Test Bank Microbiology: An Introduction, 13th Edition Gerard J. Tortora Table of Contents: Part I: Fundamentals of Microbiology Chapter 1. The Microbial World and You Chapter 2. Chemical Principles Chapter 3. Observing Microorganisms through a Microscope Chapter 4. Functional Anatomy of Prokaryotic and Eukaryotic Cells Chapter 5. Microbial Metabolism Chapter 6. Microbial Growth Chapter 7. The Control of Microbial Growth Chapter 8. Microbial Genetics Chapter 9. Biotechnology and DNA Technology Pa...

Why do we stain microbes? CORRECT ANSWER Increase Contrast What chemical attribute do basic stains have? CORRECT ANSWER A cation What are some basic stain examples? CORRECT ANSWER Methylene blue, crystal violet What chemical attribute do acidic stains have? CORRECT ANSWER An anion What is an example of an acidic stain? CORRECT ANSWER Nigrosin What is the biggest part of smear prep? CORRECT ANSWER Heat fix the bacteria What is peptidoglycan? CORRECT ANSWER bacteria specific cell...

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

UTA Microbiology Exam 1 Questions and Answers Already Passed Microbiology The study of small organisms Hippocrates was known as ___? the father of western medicine What did Hippocrates believe? diseases were not caused by supernatural reason Leeuwenhoek was known as __? the father of microbiology What did Pasteur discover and invent? discovered fermentation, invented pasteurization, vaccines What did Koch create and develop? created a method for connecting pathogens with a ...

Why is the bacterial cell wall a good target for antibiotic action? There are 2 criteria it meets Correct Answer-- different than animal cells - essential for life How do gram-positive and gram-negative cells typically differ with respect to their cell envelope? Correct Answer-Gram positive: Thick peptidoglycan, no outer membrane Gram negative: outer membrane, thin peptidoglycan Why are gram-negative organisms typically more resistant to antibiotics? Correct Answer-The outer membrane ac...

MICROBIOLOGY FINALS EXAM REVIEW Chapter 3 Eukaryotes cells are defined by the presence of a membrane bound nucleus The two magnifying lenses found in the light microscope are the —ocular and objective The major criteria used in placing bacteria into different groups is based on differences in — cell wall structure. In a basic staining procedure, correct order: smear, fix, stain SFX The acid fast stain— is useful for distinguish a small group of organisms, including mycobacterium an...

What are the 5 ways drugs kill organisms - ️️Cell Wall Synthesis Inhibitors Plasma Membrane Damage Protein Synthesis Inhibition Nucleic Acid Synthesis Inhibition Metabolic Pathway Inhibition Cell wall inhibitors - ️️Beta lactam Glycopeptide Beta Lactam drugs - ️️Penicillin Cephalosporin Carbapenem Monobactam Glycopeptide drugs - ️️Vancomycin Teicoplanin Links amino acids (D-ala-D-ala) in peptidoglycan - ️️Transpeptidase (PBP) Links glucans (NAM & NAG) in peptido...

basic stains CORRECT ANSWER methylene blue, crystal violet, safranin are all examples of what kind of stain? acidic stains CORRECT ANSWER nigrosin is an example of what kind of stain? 1. smear preparation 2. fixation (heat) 3. staining CORRECT ANSWER simple staining procedure bibulous paper CORRECT ANSWER a special absorbent paper used to dry slides; blotting paper 10x CORRECT ANSWER what objective lens should you always start with? 40x and 100x CORRECT ANSWER When focusing the ...