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- 1. How do pathogens use glycans to colonize and invade the host?3. Why is the possibility that all antibiotics may become useless such a serious concern?1. The form of oxygen found toxic to microorganisms is rendered non-toxic by a. Superoxidase which converts superoxide to molecular O2 and H2O2 b.Catalase which converts hydrogen peroxide (H2O2) to water and molecular O2 c.Both A and B d.Neither A nor B 2. Prions have the following characteristics EXCEPT a.Cannot be destroyed by enzymes known to digest DNA or RNA b. Do not have nucleic acid c. Do not have protein molecules d. Tiny infectious molecules sensitive to urea, phenol, and other protein denaturing agents PLEASE ANSWER BOTH QUESTIONS, ASAP Please no need for long explanation
- 1. Explain how the influenza virus relies on carbohydrate and carbohydrate cleaving enzymes to cause disease.2. What is/are the adsorption mechanism of activated carbon on antibiotics? 3. What will happen to the activated carbon if I will modify it using acid treatment, specifically sulfuric acid?Robert Koch (a) proposed a set of guidelines to demonstrate that a specific pathogen causes specific disease symptoms (b) discovered Helicobacter (c) showed that biofilms consist of microorganisms (d) proposed a hypothesis for antibiotic resistance (e) demonstrated that people can be stimulated to develop immunity to disease
- 10. What would be the result if a cell failed to express a functional signal peptidase enzyme? a. It would be unable to import proteins into the nucleus b. It would be unable to export proteins out of the nucleus c. It would be unable to synthesize any proteins d. It would be unable to secrete proteins e. Both a and b are correct answers#2 What are Beta-lactam antibiotics ?1. Why do symptoms of certain viral infections occur after having disappeared for a period of time?
- 1. Your doctor tells your friend that he has a viral infection in his throat. The pain is intolerable and he has an upcoming exam to study for. He is mad at his doctor for not prescribing him an antibiotic. How would you explain to him the rationale behind his doctor’s decision? Explain that a virus can’t be treated with an antibiotic and why1. what will be the odor of biogas that undergo anaerobic digestion using cow dung and food scraps, and eventually purified the carbon dioxide and hydrogen sulfide?was used by Joseph Lister to clean wounds and surgical instruments: A.Antibiotics b.Chlorine water Carbonic acid dAntitoxins e. Carbolic acid Which one of the following does not apply to the bacterial glycocalyx? It is not responsible for virulency b .It allows the organism to resist drying C. It may allow an organism to resist phagocytosis d.It is composed of carbohydrates E. It is enclosed by the cell wall