You are treating swimming pools with ozone. You are using 0.02 ppm ozone to kill adenovirus, with an exposure time of 30 minutes. Will this treatment be effective on 2 log adenovirus ? Will this treatment also kill E. coli in the same water ? Explain your answer with calculations
Q: Which of the following animals use countercurrent heat exchange to maintain elevated body…
A: Countercurrent heat exchangers countercurrent exchangers help an organism retain its body heat. It…
Q: Achondroplasia, which is characterized by difficulty converting cartilage to bone and thus results…
A: Hhsbanf is colorblind i.e XcY Wife is carrier as their son and daughter both are affected .i.e XCX…
Q: Which of the following is false regarding the gills of fish? O They utilize countercurrent exchange…
A: Apparently gills of fish :- utilize countercurrent exchange to maximize the oxygen uptake. have high…
Q: are considered as two antagonistic hormones in the control of calc and 27- homeostasis A Calcitonin…
A: (According to Bartleby guidelines, only the first three subparts have been answered. Kindly post the…
Q: Case 2. There was a reported outbreak of Capillaria philippinensis infection in one of the coastal…
A: Infection Infectious diseases are caused by the invasion and multiplication of microorganisms that…
Q: The glycolysis pathway is an example of: (choose one) a) aerobic catabolism. b) anaerobic…
A: Introduction :- The metabolic mechanism that transforms glucose to pyruvic acid is known as…
Q: A) A short paragraph on the habitat of the organism. B) A short paragraph on the special…
A: Staphylococcus Epidermidis belongs to the genus staphylococcus and is a gram-positive and…
Q: A serious genetic disorder results in dwarfism of the condors. Although this might not have…
A: Gene is the segment of DNA responsible for heredity. Two or more alternative forms of genes…
Q: This Z diagram of the light dependent reaction shows how an electron moves from the reaction center…
A: The "Zscheme" describes the oxidation/reduction changes that occur during photosynthesis's light…
Q: This important steroid hormone controls the development of male sex characteristics. Cortisone O…
A: Steroid hormones Steroid hormones are steroid molecules that behave like hormones. They are…
Q: In Transport system, discuss how does the animal and plant (name the animal and plant) works in…
A: It is critical to learn and know the anatomy and physiology of the body. Many changes in the animal…
Q: Fish and some reptiles use this form of "pumping" to ventilate their respiratory surfaces: O Buckle…
A: Introduction Respiration is the essential life process performed by all the living organisms.…
Q: Which of the following best describes the function of telomerase? a. The telomerase uses its RNA…
A: Which of the following best describes the function of telomerase Answer : a. The telomerase uses…
Q: One of food preservation advantages is making food insufficient O available all over the world O…
A: Food preservation refers to methods done to protect food from spoilage due to microbial attack.It…
Q: How Will Plants FACE a High-CO2 Future?
A: The process of photosynthesis acts as the lungs of our earth, where the plants use light and carbon…
Q: What structure is represented by 3 on the diagram? -5 Koopa -6 1 -4 3 |- PJ PG 9 7 7 7 7 7 7 7 7…
A:
Q: Two corn plants are studied. One is resistant (R) and the other is susceptible (S) to a certain…
A: Maternal Inheritence It is a kind of inheritance which does not follow Mendelian in pattern of…
Q: The structure of the C4 leaf shows how mesophyll cells hug the epidermis of the leaf. hug the bundle…
A: Photorespiration is a wasteful pathway that occurs when the Calvin cycle enzyme rubisco acts on…
Q: Are Invasive Species All Bad?
A: Invasive species are the Exotic species which are introduced to a new habitat they have the ability…
Q: (c) Write short notes on what type of preparation is needed for a specimen in order to allow it to…
A: Samples must be small enough to fit in sample chamber Samples must be electrically conductive and…
Q: Please DEFINE the alleles involved in this cross, using genetic notation consistent with the pattern…
A: Gene is the segment of DNA responsible for heredity. Two or more alternative forms of genes…
Q: What are the bones of the chicken with description and function?
A: The chicken skeleton provides structural support for the bird but also has two other functions,…
Q: What is the evolutionary trend in the alternation of generation in plants? Elaborate on adaptive…
A: Alternation of generation also known as metagenesis or heterogenesis in biology the alternation of a…
Q: What would happen if The gene for ATP synthase was methylated by accident?
A: The methylation of ATP synthase may lead to malfunctioning of various molecular activities directly…
Q: To examine: Whether the given statement, "most of the DNA sequences in a bacterial genome code for…
A: Nucleic acids are genetic material that can be passed down through generations. Nucleic acids are…
Q: Which antimicrobial agent was most effective against your organism? Can you determine from your…
A: NOTE: Since you have posted multiple questions, so we will be solving the first three for you. As…
Q: Complete the table below. Uses Solubility Number and type of amino acids Structure Globular Fibrous
A: Please follow step 2 for detailed explanation.
Q: Citing the data from your results table tell which antibiotic is the most effective against this…
A: Antibiotic Sensitivity Test is a test used to evaluate to efficacy of particular antibiotic in…
Q: A measure of the productivity of photosynthesis is the rate of a. water production. b. heat…
A: d) Oxygen production .
Q: Instruction - Please answer them correctly - Please answer all of them, they are connected. PEDIGREE…
A: (According to Bartleby guidelines, only the first three subparts have been answered. Kindly post the…
Q: What is FRAP (Fluorescence Recovery After Photobleaching)? Draw a graph of fluorescence versus time…
A: FRAP or Fluorescence Recovery After Photobleaching It is a method that was developed in 1976 by…
Q: Give examples of species under Echinodermata that can be used as currency.
A: Sand dollar is a marine species belongs under the order Clypeastroida , class echinoidea and…
Q: To determine: The reason due to which scientists generate a mice in which two normal copies of the…
A: Introduction Genome:- The genome is the entire set of DNA instructions found in a cell, In living…
Q: Scientists have also noticed unusual coloration among certain condor populations. Andean condors are…
A: The Andean condor (Vultur gryphus) and the California condor (Gymnogyps californianus) are two of…
Q: What is protein synthesis? A. The process of building new organelles in the cell B. The process of…
A: Proteins are made up of amino acids. The amino acids are linked together by peptide bonds to form a…
Q: What might an infection by Gram-negative bacteriabe more difficult to treat than a Gram-positive…
A: Introduction Bacteria are single-celled organisms that are microscopic. Bacteria can be found…
Q: Describe the significance of oxygen in the last phase of aerobic respiration using specific examples
A: In This question we have to describe about role of oxygen in aerobic respiration and aerobic…
Q: pairings that maximize the number of hydrogen bonds within pairs, what else do you notice about the…
A: Base pairing The DNA is composed of four nitrogenous bases which are Adenine represented as A…
Q: Why is maintaining a high body temperature (e.g. 37°C) more challenging for smaller endothermic…
A: Endothermic animals These are defined as the animals that have the capability to sustain a constant…
Q: Suggest 5 ways to prevent abiotic and biotic stress in plants.
A: Biotic stress caused by plant pathogens such as bacteria, fungi, viruses, nematodes, insects, and…
Q: What microbe requires serum components to be added to the growth medium?
A: Introduction Microorganisms:- An organism that can be seen only through a microscope, They live in…
Q: How does PCR relate to biomedical engineering?
A: Introduction Biomedical engineering is a branch of engineering concerned with biology and medicine.…
Q: . A defective white blood cell does not complete the process of DNA replication. Which of the…
A: In order for the replication of DNA to occur there is a definite sequence of cell cycle that has to…
Q: Describe atleast two CDk checkpoint in cell cycle and what is there role and what will happen if…
A: Introduction The cell cycle is made up of steps that help a cell divide. The G1, S, and G2 phases…
Q: Respiratory organs in plants and animals vary. These organs are specialized to perform an important…
A: Oxygen is required for cellular respiration and the metabolism of dietary energy (oxidative…
Q: Describe how receptors alter the activity of G protein complexes. List three ways in which activated…
A: The G-protein coupled receptor (GPCR) is a seven pass transmembrane receptor protein located at the…
Q: Define the words “gene” and “chromosome” so that a person without a science background will…
A: Introduction Genetics is a branch of biology genes, genetic diversity, and heredity in living…
Q: To determine: The base sequence of complementary strand if a DNA molecule has base sequence…
A: DNA was identified in the nucleus in the late 1860s by Friedrich Meischer, but its function was…
Q: Which of the following would likely t a part of the circulatory system? O pituitary gland O distal…
A: Circulatory syatem also known as blood vascular system is divided into two types: Open circulatory…
Q: Supposing two strains of autotetraploid plants are available and their genotypes are as follows.…
A: Im answering only first part Answer :- We know that genotype contributes to phenotype. Genotype is…
You are treating swimming pools with ozone. You are using 0.02 ppm ozone to kill adenovirus, with an exposure time of 30 minutes. Will this treatment be effective on 2 log adenovirus ? Will this treatment also kill E. coli in the same water ? Explain your answer with calculations
Step by step
Solved in 2 steps
- The following results were obtained from a disk diffusion test for a strain of Escherichia coli. Chemotherapeutic Zone of inhibition (mm) A 7 B 10 C 18 D 3 Which drug above (A, B, C, or D) is most effective against this E. coli strain? ***Which drug above (A, B, C, or D) is most effective against Staphylococcus aureus? Explain your answer.(c) Public health scientists wanted to investigate the effect of ionising radiation on the growth of Salmonella typhimurium in the presence of antibiotics. They grew bacterial colonies of Salmonella typhimurium in petri dishes labelled A, B and C. The Petri dishes were kept at 36°C for 48 hours, with scientists observing the bacteria every 24 hours. The results for this investigation are below. Petri dish A B с Treatment Was subjected to ionising radiation followed immediately by a dose of antibiotic X An equal amount of antibiotic X was added (as was added to Petri dish A) Was given neither ionising radiation nor antibiotic X After 24 hours Small spots of growth on surface No growth Growth across whole surface After 48 hours (ii) Identify the purpose of petri dish C. Large spots of growth on surface No growth Growth across whole surface (i) Explain the effect of the ionising radiation on the bacteria. (iii) Explain why scientists must continue to develop new antibiotics.The volume of E. coli added to each warm agar pour/virus mixture was originally100µL. After pre-testing the experiment, the instructions were modified for you to add 300µL of E. coli. Make an educated guess as to why the volume was increased.
- Suppose you do this test on a hypothetical Staphylococcus species with the antibiotics pencilllin (p-10) and chloramphenicol (C30). You record identical zone diameters of 25 mm for the chloramphenicol and penicillin disks. Which antibiotic would be less effective against this organism? Penicillin falls to the left of the resistant zone Penicillin falls to the right of the suceptible zone zone Chlorampenicol falls to the left of the resistant zone Chlorampenicol falls to the right of the suceptible zone none of theseprior to this study, why did researchers never notice that B. anthracis can make both an S-layer and a capsule simultaneously? I need help finding the answer in the article and explan in the shortest way please i linked the url for the full article https://www.ncbi.nlm.nih.gov/pmc/articles/PMC106848/Consider the photos here which demonstrate antibiotic sensitivities of Staphylococcus aureus strains as determined by the Kirby-Bauer method. Abbreviations are as follows: C = chloramphenicol; CC = clindamycin; CZ = cefazolin; E = erythromycin; NOR = norfloxacin; OX = oxacillin; P = penicillin; RA = rifampin; SAM = sulbactam-ampicillin; SXT = sulfatrimethoprim; TE = tetracycline; VA = vancomycin. Imagine that only two cellular changes occurred in the original strain (the first image, on the top) that resulted in the resistance pattern of the strain in the second image (on the bottom). Which combination of mechanisms could explainthese results?Choose one or more: A.expression of efflux pumps B.overproduction of PABA C.production of β-lactamase D.altered penicillin-binding protein E.modification of either 50S or 30S ribosomal subunits F.altered DNA gyrase
- 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?What will be the results of the following experiment with explanations: A. Gram-positive bacteria and Gram-negative bacteria were placed into 0.2% NaCl solution. B. Gram-negative bacterial isolate was placed into 0. 3% NaCl solution containing only Lysozyme enzyme. C. Gram-positive bacteria and Gram-negative bacteria were placed into 0.09% NaCl solution containing only Penicillin?Methicillin-resistant Staphylococcus aureus (MRSA) is one of the most dangerous organisms that can be encountered in the health care setting. MRSA is often resistant to more than one antibiotic. 1. What does it mean to say that S. aureus is resistant to methicillin? 2. What antibiotic would you choose to combat this micro-organism? 3. What are some clinical consequences for the patient infected with MRSA? Edit View Insert Format Tools Table В І 12pt Paragraph UA T² V fil <
- In light of the COVID-19 pandemic many people are more conscious about cleaning their household surfaces. Your sister says she is going to disinfect the kitchen counter. She sprays on the Lysol antibacterial kitchen cleaneser and immediately wipes off the surface. Is she disinfecting the surface? Explain why or why not?A batch of turkey rolls (10 lb—approximately 4.5 Kg—each) were cooked to 165°F internal temperature in bags, opened, sliced, vacuum-packaged, and stored at 40°F. The product was expected to have a refrigerated shelf life of 50 days. However, after 40 days, the packages contained gas and approximately 107 bacterial cells/g of meat. The bacterial species involved in the spoilage was found to be Leuconostoc carnosum, which is killed at 165°F. What could be the sources of the bacterial species in this cooked product?propose a hypothesis regarding the organisms (staphylococcus, escherichia, pseudomonas, and bacillus) that will be resistant to the most disinfectants, and why? if the hypothesis is supported, what specific experimental results will be observed? what would be the independent and dependent variable? zone size, disinfectant type, colony count