question_answer

Name the cells that produce antibodies. Explain their structure and functions.

OR

(i) What is meant by withdrawal symptoms?

(ii) Write the useful prevention and control methods of alcohol and drug abuse among adolescents.

 

Answer:

B-lymphocytes of the immune system when stimulated by specific antigen, produce the antibodies B-lymphocytes produce an army of proteins in reponse to pathogens into our blood to fight with them. These cells produce the antibodies which counter those bacteria and viruses which enter the blood and lymph.

OR

(i) It is the state experienced by addicts when their regular does of alcohol/drug is abruptly discontinued. It is often characterised by anxiety, shakiness, and nausea and vomiting.

(ii) (a) Avoid undue peer pressure. A child should not be pushed to perform beyond his limits in sports, studies and other activities.

(b) Educating and counselling to face problems and stresses and to accept failures and disappointments as a part of life.

(c) Seeking help from parents and peers could help to vent their feeling of anxiety and guilt.

(d) Seeking professional and medical help for de-addiction and rehabilitation progammes would help invidiuals to come out of the problem completely.