choose: which defense mechanism is more effective against gram positive bacteria than gram negative bacteria? a-...
choose:
which defense mechanism is more effective against gram positive bacteria than gram negative bacteria?
a- inflammation
b- B-galactosidase
c- peptidyl transferase
d- lysozyme
Homework Answers
D. Lysozyme.
Lysozymes cleave the beta-1, 4 linkage between sugar molecules and is more effective against gram-positive bacteria. Because the peptidoglycan cell wall is exposed out well in gram positive bacteria whereas gram negative bacteria have an outer lipopolysaccharide layer covering the peptidoglycan layer.
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choose:
which defense mechanism is more effective against gram positive
bacteria than gram negative bacteria?
a-...
Gram-positive and gram-negative bacteria differ in that A. Gram-positive bacteria have more peptidoglycan in their cell...
Gram-positive and gram-negative bacteria differ in that A. Gram-positive bacteria have more peptidoglycan in their cell walls. B. Gram-positive bacteria have fimbriae but gram-negative bacteria do not. C. Gram-positive bacteria are spiral-shaped, and gram-negative bacteria are either rod-shaped or spherical. D. Only gram-negative bacteria can form endospores. E. There is no difference between gram negative and gram positive bacteria F. Gram positive are positively charged and gram negative are negatively charges An unknown bacterial species was found in the blood...
43.Lipopolysaccharides (LPS) are found in: a. Gram-positive bacteria b. Gram-negative bacteria c. all Bacteria d. Archaea...
43.Lipopolysaccharides (LPS) are found in: a. Gram-positive bacteria b. Gram-negative bacteria c. all Bacteria d. Archaea e. Eukaryotes ------------------------- 44. There are similarities and differences between Gram-negative and Gram-positive bacteria. Which of the following is not true? a. The cell wall of Gram-negative cells is composed of only one or two layers of peptidoglycan whereas the cell walls of Grampositive bacteria have many peptidoglycan layers b. Only Gram-positive bacterial cells have a periplasm 2/6/18 8 c. The cell membranes of...
6. Tetracyclines are effective against several gram-positive and gram-negative microorganisms. Additionally, they can cause which of...
6. Tetracyclines are effective against several gram-positive and gram-negative microorganisms. Additionally, they can cause which of the three following side effects? a. Eye sclera discoloration, colitis, and a photosensitivity rash b. Tooth discoloration, colitis, and insomnia Colitis, a photosensitivity rash, and hypothyroidism c. d. Tooth discoloration, colitis, and a photosensitivity rash Tobramycin sulfate is an example of a a. Penicillin a.. 7. b. Cephalosporin c. Carbapenem d. Aminoglycoside 8. True or False: Quinolones are a type of antibiotic that inhibit...
1. Why are gram-negative bacterial more resistant than gram-positive bacteria to antimicrobial that attacks cytoplasmic targets?...
1. Why are gram-negative bacterial more resistant than gram-positive bacteria to antimicrobial that attacks cytoplasmic targets? After viewing the videos on Spirochaetes and Neisseria, answer the following question: 12. Name 2 similarities and 2 differences between spirochaetes and Neisseria organisms?
Pre-Lab Questions: After staining what color will Gram positive bacteria be? What color will Gram negative...
Pre-Lab Questions: After staining what color will Gram positive bacteria be? What color will Gram negative bacteria be? What structure is more prominent in Gram positive bacteria than Gram negative bacteria? Why should I not spray water aggressively or directly on my bacteria on my slide?
There may be more Which of the bacteria (A-E) would you expect to be catalase positive...
There may be more Which of the bacteria (A-E) would you expect to be catalase positive and why? than one of the bacteria positive for catalase. A OBLIGATE AEROBE B FACULTATIVE ANAEROBE CAEROTOLERANT ANAEROBE D OBLIGATE ANAEROBEE MICROAEROPHILE Extra: In a Gram stain one step could be omitted and still allow differentiation between Gram positive and Gram negative bacteria. What is that step? Why?
Gram-Negative Bacterial PAMPs 1. Describe the mechanism by which Gram-negative bacteria initiate the inflammatory response and...
Gram-Negative Bacterial PAMPs 1. Describe the mechanism by which Gram-negative bacteria initiate the inflammatory response and activate the coagulation pathway and the complement pathway. 2. State how this can be both beneficial and harmful to the body.
An antiseptic such as 70% alcohol dissolves lipids. It was observed that Gram-positive bacteria were more...
An antiseptic such as 70% alcohol dissolves lipids. It was observed that Gram-positive bacteria were more resistant to alcohol than Gram-negative bacteria. Is this an expected result? Why or why not, explain in detail.
Which of the following has peptidoglycan as a major constituent of cell wall? A. Gram-negative bacteria...
Which of the following has peptidoglycan as a major constituent of cell wall? A. Gram-negative bacteria B. Gram-positive bacteria C. Fungi D. None of these
What functions to anchor peptidoglycan to the cytoplasmic membrane in Gram positive bacteria, but not Gram...
What functions to anchor peptidoglycan to the cytoplasmic membrane in Gram positive bacteria, but not Gram negative ones? a) Teichoic acid b) Lipoteichoic acid c) flagellin d) phospholipid
6. Tetracyclines are effective against several gram-positive and gram-negative microorganisms. Additionally, they can cause which of the three following side effects? a. Eye sclera discoloration, colitis, and a photosensitivity rash b. Tooth discoloration, colitis, and insomnia Colitis, a photosensitivity rash, and hypothyroidism c. d. Tooth discoloration, colitis, and a photosensitivity rash Tobramycin sulfate is an example of a a. Penicillin a.. 7. b. Cephalosporin c. Carbapenem d. Aminoglycoside 8. True or False: Quinolones are a type of antibiotic that inhibit...
1. Why are gram-negative bacterial more resistant than gram-positive bacteria to antimicrobial that attacks cytoplasmic targets? After viewing the videos on Spirochaetes and Neisseria, answer the following question: 12. Name 2 similarities and 2 differences between spirochaetes and Neisseria organisms?
There may be more Which of the bacteria (A-E) would you expect to be catalase positive and why? than one of the bacteria positive for catalase. A OBLIGATE AEROBE B FACULTATIVE ANAEROBE CAEROTOLERANT ANAEROBE D OBLIGATE ANAEROBEE MICROAEROPHILE Extra: In a Gram stain one step could be omitted and still allow differentiation between Gram positive and Gram negative bacteria. What is that step? Why?
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