L.S.D, morphine and bhang are respectively obtained from

HIV mainly infects

In malaria, the product released by mosquito into blood that causes chill and fever is called

Active immunity developed is related to

If the person shows the production of interferons in his body, chances are that he suffering from

Why is the antibody-mediated immunity called humoral immunity?

What is social disease?

Mention one undistilled and one distilled alcohol.

What is the sources of LSD?

Name and explain the type of immunity that is provided by injecting microbes deliberately during immunisation into the human body.

State the fuctions of primary and secondary lymphoid organs in humans.

(a) Explain the property that prevents normal cells from becoming cancerous.
(b) All normal cells have inherent characteristic of becoming cancerous.Explain.

Name four diseases that have been controlled by vaccination.

Name the cells HIV(Human Immuno Deficiency Virus) gains entry into after infecting the human body.Explain the events that occur in these cells.

Write the scientific name of the pathogen that causes amoebic dysentery.Enumerate four symptoms of the disease.How is the disease transmitted?

Mention any six factors that are important/necessary to achieve good health.

Many microbial pathogens enter the gut of humans along with food. What are the preventive barriers to protect the body from such pathogens?

Why do some adolescent start taking drugs?How can this be avoided.

Answer the following questions:
(a) How are the cancer cells different from normals cells?
(b) Pick out correct carcinogens out of the following :
Asbestos, infra red rays, arsenic, polythene, casein, caffein, tobacco smoke, Gamma rays.
(c) Write down three methods (write full forms wherever required) to detect cancer of internal organs.