(a) i.What is microorganism P? [1 mark ]
(ii)What type of interaction between P and the bacterium? [ 1 m]
(iii) Explain the interaction that you mentioned in (a) (ii). [2m ]
(b)State one characteristics of organism P. [1m]
Siti lives in a flat area with clogged drainage and poor sanitary system. Unluckily last week she was down with fever. She had severe body pain and rashes over the body. She also experienced severe headaches and vomiting.The doctor discovered that she had been infected by microorganism Q that carried by the vector R as shown in Diagram 5.2.
(c) i. Name the microorganism Q. [1 m]
ii. Why the antibiotic cannot treat this disease? [2 m]
iii. After one week rest, Siti is recovered. State the type of immunity she obtained. [1m]
iv. Explain the immunity you mentioned in (b) (ii). [2 m]
(d)State one similarity between microorganism P and Q.
(ii)What type of interaction between P and the bacterium? [ 1 m]
(iii) Explain the interaction that you mentioned in (a) (ii). [2m ]
(b)State one characteristics of organism P. [1m]
Siti lives in a flat area with clogged drainage and poor sanitary system. Unluckily last week she was down with fever. She had severe body pain and rashes over the body. She also experienced severe headaches and vomiting.The doctor discovered that she had been infected by microorganism Q that carried by the vector R as shown in Diagram 5.2.
(c) i. Name the microorganism Q. [1 m]
ii. Why the antibiotic cannot treat this disease? [2 m]
iii. After one week rest, Siti is recovered. State the type of immunity she obtained. [1m]
iv. Explain the immunity you mentioned in (b) (ii). [2 m]
(d)State one similarity between microorganism P and Q.
Suggested Answer:
a) i) bacteriophage
ii) parasitism
iii) It is a relationship in which virus benefits while the bacteria is harmed.
b) -virus is a non-living cell , cannot survive or reproduce on its own outside the cells of its host // all viruses are infectious; they must infect living cells to reproduce.
c) i) Dengue virus
ii) because virus did not have the metabolism that can interrupted by antibiotic.
iii) naturally acquired active immunity
iv) this immunity is obtained after a person is exposed to a pathogen, and he the pathogen stimulate an immune response that produces antibodies.
d) -They are virus / they are pathogenic / infectious / cause disease.
ii) parasitism
iii) It is a relationship in which virus benefits while the bacteria is harmed.
b) -virus is a non-living cell , cannot survive or reproduce on its own outside the cells of its host // all viruses are infectious; they must infect living cells to reproduce.
c) i) Dengue virus
ii) because virus did not have the metabolism that can interrupted by antibiotic.
iii) naturally acquired active immunity
iv) this immunity is obtained after a person is exposed to a pathogen, and he the pathogen stimulate an immune response that produces antibodies.
d) -They are virus / they are pathogenic / infectious / cause disease.
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