Human health n diseases: Previous Year Questions Part 1


2010 MARCH
1.     “More and more children in metro cities of India suffer from allergies and asthma.”

a.   Do you agree with this statement? (½)
b.   Justify your answer. (1)
2.     Widespread incidence of diseases like H1N1, Chikun gunya, Dengue fever etc is reported recently. As a science student, prepare an action plan in your school to control those diseases. (2½)
2010 SAY
1.     The flowchart given below represents life cycle of malarial parasite. Complete the flow chart and answer the following.
a.   Which species of malarial parasite causes malignant malaria? (1)                                                           
b.   Can you suggest 2 methods to control malaria? (1)
2.     The list given below includes various stages of HIV infection. Arrange them according to correct sequence. (2)
Viral replication – macrophage – helper T cell – formation of DNA – progeny virus – viral particle – release of progeny virus
2011 MARCH
1.     Lakshmi and Sujitha are two nursery students. Sujitha gets common cold very often. Lakshmi not.
a.   How do you interpret it in an immunological aspect? (1)
b.   What are the common barriers protecting Lakshmi from cold? (1)
2.     Analyzing the relationship among different columns, fill the gap appropriately. (2)
Salmonella typhi
High fever, constipation
Rhino virus
2011 SAY
1.     A list of human diseases is given below.
Typhoid, Pneumonia, Diphtheria, Malaria, Amoebiasis, Ascariasis, Elephantiasis
a.   Categorize them into distinct groups (1)
b.   Name the causative organism of typhoid. (1)
2.     Raju had lost his mother at birth. He is unhealthy and prone to diseases easily. In his doctor’s opinion, Raju’s ill health is due to lack of drinking mother’s milk. How will you justify the doctor’s opinion in the light of your knowledge of immunity? (2)
2012 MARCH
1.     Arrange the following diseases in the following columns in a meaningful order. (2)
Typhoid, Ringworms, Amoebiasis, AIDS, Malaria,
Pneumonia, Common cold

2.     In a class room discussion a student argues that allergic reactions are more common in children of metro cities than in villages.
a.   Do you agree with this statement? (½)
b.   Which type of immunoglobulin is responsible for allergic reactions? (½)
c.    Suggest two drugs which reduce allergic symptoms. (1)
2012 SAY
1.     Note the relation between first two terms and suggest a suitable term for the fourth place. (1)
a.   Erythroxylum coca: Cocaine                             
Papaver somniferum: ………………………..
b.   Salmonella typhi : Typhoid                
Plasmodium falciparum: …………………….
2.     One of your friend argued that antiretroviral drugs are effective medicine to treat AIDS.
a.   What is your opinion about it? (1)
b.   Hoe HIV affects our immunity? (2)
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