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Q1 How can you measure the activity of actinomycetes that produce
antibiotics ?
Q2 What is the reason of the production of clear zone around the proteolytic
bacteria when grown on casein agar ?
Q3 Why some bacteria produce Nanoparticles when grown on trace elements?
Q4 Why the ureolytic bacteria use urea? And why they produce CaCO3?
Step by step
Solved in 3 steps
- Q5) What genus of bacteria is most likely to produce antibiotics? Q6) How could you tell if antibiotics are actually produced? Describe for me what was done in the lab to confirm this.1. What is the initial population of the bacteria? 2. How does the bacteria grow over a period of time? 3. How many bacteria will there be after 12 hours? 24 hours? 4. When is it terminal to take an antibacterial after acquiring the bacteria?23. Why are broad spectrum antibiotics used as 1st choice in treating patients; ( mark the BEST answer) Group of answer choices wipes out healthy microbes in a system, so you can isolate only the pathogen of interest causes less discomfort compared to other narrow spectrum antibiotics it is more readily available and less toxic only attacks a few microbial species buys more time for medical providers to come up with a narrower spectrum antibiotic 24. Vacuoles, observed in many Protozoans, Group of answer choices C. regulates micronuclei functions D. statements A and C E. statements A and B F. statements B and C B. are associated with food particles intake A. have role in regulating fluid / water balance
- Q1: What is the difference between MRSA and VRSA? Q2: Why is there a clear zone (the “zone of inhibition”) around the paper disk in the top dish but not in the bottom dish? Q3: Why is the lack of a clear zone around the paper disk in the bottom dish so alarming?1. What color does an acid-fast cell stain? 2. Identify two diseases that are caused by acid-fast bacteria. 3. In the endospore stain, what color do the endospores stain? 4. If you performed an endospore stain on Mycobacterium, what color cells would you expect tosee? Why? 5. How do capsules contribute to virulence of an organism? 6. Since you know what lophotrichous and amphitrichous arrangements look like, put thoseterms together to draw an amphilophotrichous bacterium. 7. Streptococcus pneumoniae that are capable of causing pneumonia are encapsulated bacteria(meaning they have a capsule). Describe what you would expect to see under themicroscope after performing a capsule stain with india ink and safranin.Amswer the following questions: 1. What other physiological responses may have caused the diphasic growth in E. coli? 2.Describe the methods used by microbiologists in producing synchronous cultures from unsynchronized bacterial culture.
- Answer the following questions: 1. What was the first antibiotic and what was its importance? 2. What does resistance mean? 3. Who is affected by resistance? 4. What if the resistance problem is not solved? 5. Describe the structure of the bacterium (its parts) 6. Can bacteria change? explain 7. Why do Bacteria communicate, what is the purpose? 8. Explain how a bacterium achieves its resistance. 9. What is the use given to antibiotics in production animals? 10. Is this use in animals good practice? 11. Once resistance occurs, what has the scientific community had to do? 12. Do antibiotics only affect negative bacteria? explain. 13. What are the most feared diseases due to antibiotic resistance? 14. Should antibiotics be used against viruses? explain. 15. How can we avoid antibiotic resistance?Answer the following questions: 1. Define a bacterial colony. 2. What is the difference between macroscopic and microscopic appearance of bacteria? 3. State the three standard terms used to describe single colonies on agar plates. 4. State and define the three types of growth that may be seen in a broth culture. 5. State three basic shapes of bacteria. 6. State and describe the different arrangements of cocci. 7. What is the difference between true motility and Brownian motion?q3 Two-component system (TCS) allows an organism in adapting to changes in the environment. It is available mostly in prokaryotes but is also available to some eukaryotes.c) Evaluate the Regulator of capsule Synthesis (Rcs) phosphorelay system of Enterobacteria
- 1. Is it possible to provide a formal name for a microorganism that has not been cultivated in isolation? 2.What kind of name might be used if a microorganism is well-characterized but cannot yet be cultivated in isolation?Answer the following questions briefly and concisely 1.How do bacteria in a chemostat and those in a batch culture vary from one another? 2. What happens in a chemostat if the dilution rate is higher than the organism's maximum specific growth rate? 3.Does a chemostat require the use of pure cultures? 4. Why would a complicated culture media for Leuconostoc mesenteroides be simpler to make than one with a fixed chemical composition?1. What is host resistance in bacteria? 2. What is gram staining technique? 3. Difference between lysosomes and peroxisomes. 4. What are microtubules in cell? 5. Define endoplasmic reticulum, mitochondria, cytoskeleton, ribosomes, vesicles, golgi apparatus, chloroplasts, vacuole, pili and fimbriae, transcription, plasma membrane, cytoplasm, DNA 6. Meaning of primitive cells.
