Innate Immunity

Choose the true statements . Innate immunity is accomplished by providing different types of barriers. Acquired immunity is present from the birth and is inherited from parents. III. Sweat, tears, acid in the stomach and saliva prevent microbial growth.

Asserion : Innate immunity is accomplished by providing different types of barriers to the entry of the foreign agents into our body. Reason Acquired immunity is accomplished by B-lymphocytes and T-lymphocytes.

Which of the following statements are correct? (I) Bone marrow and spleen are primary lymphoid organs. (II) Mucosa Associated lymphoid Tissue (MALT) forms about 50% of the lymphoid tissue (III) MHC are the molecules reponsible for recognition and labelling. (IV) Innate immunity shows primary and secondary response. Codes

Read the given statements carefully. (i) Innate immunity is a sppecific type of defence, that is present at the time of birth. (ii) Malignant malaria is caused by Plasmodium falciparum. (iii) Malaria could be confirmed by Widal test. (iv) Active immunity is slow and takes time to give its full effective response. (v) Saliva in the mouth acts as physiological barrier for pathogens. Which of the above statements are correct ?

Read the statement and choose the correct option (I) Secretion of interferons is a physiological barrier of innate immunity II. T-lymphocytes are responsible for cell mediated immunity III. Injection given against snake venom is a type of active immunisation IV. Antibodies produced during allergic reactions are of IgA type

Consider the following four statements (a-d) and select the option which includes all the correct ones only: a) B-lymphocytes forms cellular barrier of innate immunity. b) HLA antigens are called as transplantation antigens c) Subsequent encounter with the same pathogen elicits a highly intensified anamnestic response. d) Interferons protect non-infected cells from further viral infection.

Read the following Statements A-D. a) Memory- based innate immunity evolved in higher vertebrates based on the ability to differentiate foreign organism (e.g. pathogen) from self-cells. b) The exaggerated response of the immune system to certain antigen presents in the environment is called allergy. c) Passive immuntiy is slow and takes time to give its full effective response. d) The Yellowish fluid colostrum secreted by mother during the initial days of lactation has abundant antibodies to protect the infant. How many of the above statements are false?

Innate/Inborn Immunity:- 4 Barriers (Physical/Physiological/Cellular/Cytokine), Complement System