Fill in the Blanks
- Typhoid fever is caused by _____ and is diagnosed by the _____ test.
- HIV is a _____ that uses the enzyme _____ to convert its RNA genome to DNA.
- HIV specifically destroys _____ cells, leading to progressive _____.
- The vector for malaria is the female _____ mosquito; the vector for filariasis is the _____ mosquito.
- In malaria, _____ pigment is released when infected RBCs rupture, triggering the _____ cycle.
- P. _____ is the most dangerous malarial species causing cerebral malaria; P. _____ forms hypnozoites causing relapse.
- The four barriers of innate immunity are _____, _____, _____, and _____.
- B-lymphocytes differentiate into _____ cells that produce antibodies and _____ cells for long-term memory.
- IgG crosses the _____ to provide passive natural immunity to the fetus; IgA is found in _____.
- Active immunity is _____ in onset but _____ in duration; passive immunity is _____ in onset but _____ in duration.
- In active immunity, _____ cells are formed; in passive immunity, _____ memory cells are formed.
- Benign tumors are _____ ; malignant tumors undergo _____ .
- Oncogenes are mutated _____ that promote cell division; tumor suppressors _____ and _____ normally inhibit it.
- Heroin is derived from _____ (plant); cocaine from _____ (plant); cannabinoids from _____ (plant).
- Cocaine blocks _____ transport, causing _____ (neurotransmitter) to accumulate, leading to CNS _____.
Answer Key
- Salmonella typhi; Widal
- Retrovirus; reverse transcriptase
- CD4+ T-helper; immunodeficiency (AIDS)
- Anopheles; Culex
- Haemozoin; fever-chill
- falciparum; vivax
- Physical, physiological, cellular, cytokine
- Plasma; memory B-
- Placenta; colostrum (first breast milk)
- Slow; long-lasting; immediate; short-lived
- Memory (B and T); NO
- Localized; metastasis
- Proto-oncogenes; p53; Rb
- Papaver somniferum; Erythroxylum coca; Cannabis sativa
- Dopamine; dopamine; stimulation