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- 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 disease61.acellus.com/StudentFunctions/Interface/acellus_engine.html?ClassID=464121215# The liver is responsible for detoxing the body. Based on this information, which of these should be plentiful in liver cells? A. cardiac tissue 4 B. DNA C. smooth ER D. mitochondria 2003-2022 International Academy of Science. All Rights Reserved. O I O 1 C 58% D 92°F2. C. albicans is part of our normal flora but is not a prokaryotic cell. Using that information, explain why it is one of the most common causes of superinfections following treatment with antibiotics? Discuss the fact that albicans is a eukaryotic cell, like your own cell. Discuss selective toxicity. What are antibiotics based on?
- Virusesa. are usually photosynthetic.b. consist of a single cell.c. consist of DNA or RNA and a protein coat.d. consist of ATP and a lipid coat.Bacterial LPS a. exists in Gram negative bacteria b. is the glycocalyx C. contains protein d. made of peptidoglycan e. all except d.24. Which of the following is NOT true of the CFB group? A. Able to process cellulose in rumen B. Avid fermenters C. Mostly pathogenic D. Rod-shape bacteria E. All of the above are true 25. Which of the following makes up about 30% of the entire gut microbiome? A. Bacteroides B. Chlostridia C. Cytophaga D. Fusobacterium E. None of the above 26. Most Bacteroides are mutualistic. A. True B. False
- Bacterial LPS a. exists in Gram negative bacteria b. is the glycocalyx C. contains protein d. made of peptidoglycan e. all except d. O a. a Obb O c.C O d. d O e. e16. Why 70% alcohol is used as a disinfectant? Circle all possible explanation. O A. Alcohol denatures proteins in the plasma membrane or viral body thus destroying it rendering them ineffective and causing cell death or inhibiting reproduction. V B. Water is used as a catalyst for the denaturation of proteins that leads to cell membrane destruction. O c. Alcohol can be taken in orally, destroys cells that entered the body. V D. Diluted alcohol evaporates slower compared to a pure alcohol since its highly volatile, providing more time for chemical reactions to take place. O E. 100% alcohol coagulates proteins instantly creating a film that protects the other proteins from further coagulation preventing other alcohol molecules to react and destroy the cell membrane. O F. Alcohol has a dehydrating effect and may interfere with the functioning of cell membranes.A B 12. The cells (above, A) were growing in the presence of "Drug X". After several hours the larger cell appears to deflate (B). What is the most likely target for Drug X? A. capsules B. peptidoglycan C. ribosomes D. cell membrane E. biofilms
- What feature does Bacillus and Clostridium have in common that is not found among most other bacteria? a. Axial filamentb. Form Endosporesc. High concentration of lipids in cell wall d. Branching cellse. Obligate Intracellular Parasite All of the following pertain to the plague except... a. Rats are reservoirs b. Fleas serve as vectorsc. Outbreaks have never occurred in the U.S.d. Pneumonic type transmitted by aerosol droplets e. Produces swollen lymph nodes Which is not true of virus capsids?a. They surround and protect viral nucleic acidb. Always icosahedral in shapec. Remain outside of host bacterial cells while the nucleic acid is injected into the bacterial celld. Enters host animal cells together with the nucleic acid e. Made up of protein subunits called capsomeres All viruses have: a. DNA b. RNAc. Envelopesd. Glycoprotein spikes e. Host specificity Use the following to select the sequence of events during replication of DNA viruses in animal cells:1 = replication…14. Explain why Mycoplasma and Mycobacterium are atypical cells and diseases caused by each 13.List several antibiotics and a natural protein that specifically targets peptidoglycan; define MRSA* 16.Describe the structure and function of the bacterial membrane and why it is selective permeability4. Which disease listed below is not caused by a microbe? a. Trichomoniasis b. HPV c. HIV/AIDS d. Phenylketonuria e. Cholera