Why carbon monoxide ($CO$) poisonous for man?
It affects the nerves of the lungs
It affects the diaphragm and intercostals muscles
It reacts with oxygen reducing percentage of oxygen in air
Haemoglobin combines with carbon monoxide instead of oxygen and the product cannot dissociate
Match the disease in column $I$ with the appropriate items (pathogen/prevention/ treatment) in column $II$.
Column $-I$ | Column $-II$ |
$(A)$ Amoebiasis | $(i)$ Treponemapallidum |
$(B)$ Diphtheria | $(ii)$ Use only sterilizedfood and water |
$(C)$ Cholera | $(iii)\;DPT$ Vaccine |
$(D)$ Syphilis | $(iv)$ Use oral rehydration therapy |
An insect bite may result in inflammation of that spot. This is triggered by the alarm chemicals such as
Which one of the following is a stimulant?
Haemozoin formed in malaria is produced by
Tse-tse fly is a vector for sleeping sickness which transmits the infective stage of which of the following parasite