Multiple Choice (total of 60 points) 1. Penicillin resistant Neisseria gonorrhoe
ID: 275514 • Letter: M
Question
Multiple Choice (total of 60 points) 1. Penicillin resistant Neisseria gonorrhoeae has the enzyme a. Beta lactamase b. lysozyme c. pepsin d. immunoglobulinase 2. is not an example of innate immunity. a. Skin b. Mucus c. Antibody d. Nasal hair The body has been invaded by a pathogen and has responded with a fever. Which of the following is not a way that a fever helps the body fight off an infection? 3. a. b. c. d. The liver and spleen release iron, which increases the amount of iron in the blood. It inhibits bacterial growth Stimulates phagocytosis. Speeds up repair of tissues.Explanation / Answer
1) Penicillin resistant Neisseria gonorrhoeae has the enzyme beta-lactamase.
beta-lactamase is the enzyme that cleaves the beta-lactam ring that has a central role in penicillin function as an antibiotic.
lysozyme is an enzyme that degrades bacterial cell by breaking its cell wall usually found in tears and saliva.
pepsin is a protein digestion enzyme that is present in gastric juice that is active at lower pH.
immunoglobulinase is the enzyme that brings about digestion of immunoglobulins or Antibodies.
2)Innate immunity (native/natural immunity) is the non-specific immunity present since birth.
skin, mucous, nasal hair all present since birth, these are the components of an innate immune system. whereas an antibody is a component of the adaptive immune system.
3)The answer for this is option a. The liver and spleen release iron, which increases the amount of iron in the blood.
Fever during an infection by bacteria is a means by which body makes it a place that is hostile to pathogen survival.
Increase in body temperature results in denaturing the proteins that a pathogen release and controls its spread. It also brings about vasodilation and increased phagocytosis.
metabolism during a fever is relatively high resulting in increased tissue repair. during fever time the blood is seen to contain low levels of iron.
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