31. What disease is caused by Vibrio cholerae?
[A] Cholera
[B] Plague
[C] Tetanus
[D] Anthrax
Show Answer
Correct Answer: A [Cholera]
Notes:
Cholera disease is an acute diarrheal illness caused by Vibrio cholerae bacteria.
32. Ringworm is caused by __
[A] Cryptosporidium parvum
[B] Piroplasmorina
[C] Hypophosphataemia
[D] Trichophyton verrucosum
Show Answer
Correct Answer: D [Trichophyton verrucosum]
Notes:
Ringworm is a contagious skin disease most often caused by Trichophyton verrucosum.
33. Which of the following virus is also known as the common cold?
[A] Variola virus
[B] Rhinovirus
[C] Varicella zoster Virus
[D] Myxovirus
Show Answer
Correct Answer: B [Rhinovirus]
Notes:
Rhinovirus is also known as the common cold. This is also called RNA Virus.
34. Which of the following will be pure breeding for only one character?
[A] Hh Rr
[B] HH Rr
[C] HH RR
[D] hh rr
Show Answer
Correct Answer: B [HH Rr]
Notes:
Hh RR would breed correct for the H locus but since it is heterozygous for the R locus, the R character would not be correct.
35. In Angiosperms, plant embryos in seed have structures called ____:
[A] Buds
[B] Spore
[C] Sprout
[D] Cotyledon
Show Answer
Correct Answer: D [Cotyledon]
Notes:
The word angiosperm means seed. The seeds develop inside an organ which is modified to become a fruit. These are also called flowering plants. Plant embryos in seeds have structures called cotyledons. Cotyledons are called ‘seed leaves’ because in many instances they emerge and become green when the seed germinates.
36. Protein part of enzyme is known as ____:
[A] Isoenzyme
[B] Holoenzyme
[C] Apoenzyme
[D] All of the above
Show Answer
Correct Answer: C [Apoenzyme]
Notes:
Enzymes are defined as biological catalysts. Chemically all enzymes are globular proteins. Each enzyme catalyses only one chemical reaction. Protein part of enzyme is known as Apoenzyme. It forms an active enzyme system by combination with a coenzyme and determines the specificity of this system for a substrate.
37. Fermentation is a type of ____ process:
[A] Exothermic Reaction
[B] Aerobic Respiration
[C] Anaerobic Respiration
[D] Transpiration
Show Answer
Correct Answer: C [Anaerobic Respiration]
Notes:
Fermentation in food processing is the process of converting carbohydrates to alcohol or organic acids using microorganisms—yeasts or bacteria—under anaerobic conditions. It also occurs in oxygen-starved muscle cells, as in the case of lactic acid fermentation.
38. The largest White Blood Corpuscle is ____:
[A] Lymphocyte
[B] Monocyte
[C] Thrombocyte
[D] Erythrocyte
Show Answer
Correct Answer: B [Monocyte]
Notes:
Monocytes are the largest white blood cell about 20m in diameter. When they leave the blood they’re called macrophages. Macrophages work with lymphocytes as antigen presenting cells.
39. White lung disease is prevalent among the workers of ____:
[A] Cotton industry
[B] Cement industry
[C] Pesticide industry
[D] Paper industry
Show Answer
Correct Answer: A [Cotton industry]
Notes:
White lung shows acute lung injury characterized by coughing inflammation of the lungs which become stiff and fibrous and cannot exchange oxygen. It occurs among persons exposed to irritants such as corrosive chemical vapor or ammonia or chlorine etc. Brown lung, or bysinnois, similar to black lung (pneumoconiosis) and white lung (asbestosis) disease among coal miners and shipyard workers and workers in textile industry exposed to asbestos are well known occupational hazards.
40. Which of the following is a communicable disease?
I. Malaria
II. Tuberculosis
III. Measles
[A] Only II
[B] Only III
[C] Both I and III
[D] Both II and III
Show Answer
Correct Answer: D [Both II and III]
Notes:
Malaria is a life-threatening mosquito-borne blood disease caused by a Plasmodium parasite. It is transmitted to humans through the bite of the Anopheles mosquito. Tuberculosis (TB) is an infectious disease usually caused by the bacterium Mycobacterium tuberculosis. Measles is a highly contagious infection caused by the measles virus.
