Bacterial cell walls - Study guides, Class notes & Summaries

Chlorine and iodine are classified as - halogens Obligate aerobes can only live - when oxygen is present Microorganism found thriving in a the permafrost region of the Arctic are - pychrophiles Facultative halophiles - tolerate an elevated salt concentration in the environment Most bacteria prefer to grow at which pH range? - Most bacteria prefer to grow at which pH range? The spectrophotometer is used in microbiology to - indirectly measure microbial growth Pyrimidine dimers are formed i...

Not very many proteins in the eukaryotic cytoplasmic membrane. Where did they go? - Answer-They are still in the membrane and they are still busy, but most of the proteins went to the mitochondrial membrane in eukaryotes. Cellulose and Chitin - Answer-Use specific b-1,4-glycosidic bonds between sugars provides strength and rigidity. In algae Fungi - Cell Wall - Answer-You have a NAG in chitin for cell walls in fungi. The cell wall is all NAGs Cytoskeleton Function - Answer-Involved in intr...

Microbiology Lab Final Exam Questions and Answers 100% Pass What does a pure culture contain? A single type of microorganism. Why is the inoculating loop sterilized before use? To eliminate any contaminating organisms. What is the first step in preparing a bacterial smear? Applying a small drop of water to the slide. What does the acid-fast stain detect? Bacteria with waxy cell walls, such as Mycobacterium. What is the purpose of incubation in bacterial culture growth? T...

NU 545 Unit 1 Test Bank Questions and Answers|Graded A+ NU 545 Unit 1 Test Bank Questions and Answers|Graded A+ CHAPTER 7 1. Which action is a purpose of the inflammatory process? a. To provide specific responses toward antigens b. To lyse cell membranes of microorganisms c. To prevent infection of the injured tissue d. To create immunity against subsequent tissue injury 2. How do surfactant proteins A through D provide innate resistance? a. Initiate the complement cascade. b. Prom...

archaea characteristics - Answer-has pseudopeptidoglycan in cell wall; S layer for cell wall (not exclusive); ether linked lipids in cell membrane (exclusive); has monolayer cell membrane sometimes (exclusive); rapid growth and divide by binary fission; metabolically diverse bacteria characteristics - Answer-has peptidoglycan in cell wall (exclusive); ester linked bilayer lipids in cell membrane (same as humans); rapid growth and divide by binary fission; metabolically diverse fungi charact...

EMT Basic Exam 2 Actual Questions and Answers / Verified Answers 2023/2024 You and your partner are treating a 66-year-old man who experienced a sudden onset of respiratory distress. He is conscious but is unable to follow simple verbal commands. Further assessment reveals that his breathing is severely labored and his oxygen saturation is 80%. You should: A. attempt to insert an oropharyngeal airway. B. assist his ventilations with a bag-mask device. C. apply a continuous positi...

MCB 2010C Microbiology Final Exam Latest 2024|2025 FALL-SPRING FSW GRADED A+

Midterm Exam: NUR631/ NUR 631 (New 2023/2024 Update) Advanced Physiology and Pathophysiology _Study Guide with Questions and Verified Answers_ 100% Correct – GCU QUESTION Hypernatremia S/S Answer: You are 'fried' or S.A.L.T. F - Fever (low grade), flushed skin R - Restless (irritable) I - Increased fluid retention and increased BP E - Edema (peripheral and pitting) D - Decreased urinary output, dry mouth S = Skin flushed A = Agitation L = Low-grade fever T = Thirst ...

Disinfection - destruction of vegetative pathogens; usually on inanimate objects. Antiseptic - agent which prevents bact. contamination and growth; usually on living tissue. Which agent doesn't necessarily work better at higher concentrations? - Alcohol, 70% (goldie lock zone)(60-80% most effective) (Ethyl and Isopropyl) -Alcohol is very effective to resistant to inactivation by organic materials (halogens are not good at this) Name the factors that affect a disinfectant activity. - -Cont...

Obligate halophiles - High osmotic pressure aka lots of salt like the great salt lake Facultative halophiles - Type that causes acne can be in salty also known as osmolaric but not nessesary Neutrophiles - Most bacteria Protozoa and pathogens like neutral ph rang 6.5-7.5 Acidophiles - Really acidic as low as 0 pH Alkalineophiles - Grow best in basic range up to 11.5 ex cholera Thermophiles - Higher temperatures above 45C ex hot springs Hyperthermophiles - Hottest 80C and above Mesophiles...