Home
Class 12
BIOLOGY
the immune system plays an important ro...

the immune system plays an important role in
(a) Recognition of foreigh antigens
(b) Responds to antigens and remembers them
(c ) Allergic -immune diseases
( e) Orgain transplantation

A

b, c and e

B

a and b only

C

a, b, c and d

D

a, b, c, d and e

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

Which of the following plays an important role in controlling reproduction ? a. Day length b. Nervous system c. Endocrine system

Read the following statements and find out the incorrect statement. (a) Water is essential for all physiological activities of the plant and plays a very important role in all living organisms. (b) A mature corn plant absorbs almost five litres of water in a day. (c) A mature plant absorbs water equal to its own weight in about 3 hours. (d) Water is often the limiting factor for plant growth and productivity in both agricultural and natural environments. (e) A watermelon has over 92 percent water, most herbaceous plants have only about 10 to 20 percnet of its fresh weigth as dry matter.

Antigen antibody reaction || primary and secondary immune response || active and passive immunity || vaccination || autoimmune allergic and immune dficiency diseases || grafting and transplantation

Read the following statements and select the correct option. Statement 1 : The exaggerated response of the immune system to certain antigens present in the environment is called as allergy. Statement 2 : The allergic tendency is genetically passed from the parent to the offspring and is characterised by the presence of large quantities of IgG antibodies in the blood.

Read the given Statements regarding immunization and select the option that identifies the correct ones . I. The principal of vaccination is based on the memory of the immune system . II.The antibodies produced in the body against antigens neutralise the pathogenic agents before the actual infection. III. Hepatitis B vaccine is prepared by using a virus in recombination DNA technology. IV. Antibiotics are given directly in elicit a quick immune response.

Define the following terms : (a) Innate immunity , (b) Acquired immunity , (c) Immunology , (d) Hematopoiesis , (e) Antigen , (f) Antigenic determinant , (g) Vaccine , (h) Primary immune response , (f) Secondary immune response.