Human Health and Disease - Online Test
Q1. The disease causing microorganisms are called
Answer : Option A
Explaination / Solution:
A number of bacteria, fungi, virus etc. cause disease in human beings. These disease causing microbes are called pathogens.
Q2. Motile zygote of Plasmodium occurs in
Answer : Option C
Explaination / Solution:
Plasmodium completes their life cycle in two hosts, female anopheles and human beings. The motile zygote of plasmodium occurs in gut of female anopheles, which get transferred to human being during mosquito bite.
Q3. Pathogenic bacterium that cause typhoid fever in human being is
Answer : Option B
Explaination / Solution:
Typhoid fever in human being is caused by Salmonella typhi. The pathogen enters to small intestine through food and contaminated water and migrates to other organs through blood.
Q4. Alzheimer disease in humans is associated with the deficiency of
Answer : Option D
Explaination / Solution:
Alzheimer disease is a neurological disorder in which the death of brain cells causes memory loss and cognitive decline. It is caused in human due to deficiency of acetylcholine.
Q5. Hemozoin is released into blood during the infection of Plasmodium vivax every
Answer : Option C
Explaination / Solution:
Plasmodium vivax protozoa cause malaria in human beings having high fever and chill effect at the regular interval of time. Hemozoin is released in blood stream by plasmodium that cause high fever at the interval of 48 hours.
Q6. The organism which causes pneumonia in human beings is
Answer : Option D
Explaination / Solution:
In human beings pneumonia is caused by bacterium Streptococcus pneumoniae that cause inflammation in lungs. This bacterium is atrichous as it lacks flagella of body surface.
Q7. From what Lysergic acid is formed?
Answer : Option C
Explaination / Solution:
Lysergic acid is formed by ergot fungi. Ergot fungi refers to a group of fungi of genus Claviceps. The most common is Clevicepspurpuea. It cause ergotism in man and other mammals.
Q8. Goitre can occur as a consequence of all the following except
Answer : Option B
Explaination / Solution:
Goitre is a deficiency disease that occurs due to less secretion of hormone thyroxin. Less or no secretion of this hormone may occurs due to iodine deficiency, pituitary adenoma and Grave’s disease.
Q9. Post erythrocytic part of life cycle of plasmodium is called
Answer : Option D
Explaination / Solution:
The post erythrocytic part of life cycle of plasmodium is called Ross cycle. This cycle is named after the scientist Ronald Ross, who discovered the cycle of malarial causing protozoa, plasmodium.
Q10. Aedesaegypti is a vector for
Answer : Option D
Explaination / Solution:
Dengue fever and yellow fever, both are transmitted to human beings through a mosquito called Aedesaegypti. This mosquito breeds in clean stagnant water and carry the disease causing virus form infected person to healthy person.
