Solve your IGNOU Doubts
Solve your IGNOU Doubts
Question:

Leg modification in insects

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Question:

Typical structure of insect wing

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Question:

Types of antennae in insects

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Question:

Mouthpart modifications in insects

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Question:

“Insects are diverse group of animals that are well adapted to different anvironments” Justify the statement.

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Question:

Explain any five immunological tools and techniques.

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Question:

Enumerate and described the cells of immune system.

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Question:

Classify the different types of vaccines.

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Question:

i) Humoral immunity results in circulation of ………………. throughout the blood.

ii) The ………………. portion of antibody provides antigen-binding sites.

iii) In complement system, cleavage of C5-by-C5 convertase produces ………………. which is a chemotaxin that attracts macrophages and neutrophils.

iv) Endogenous antigens are presented with ………………. for Tc cells interaction.

v) The Immunoglobulin which has highest binding valency is …………… .

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Question:

Discuss different cytokines that act as mediators of innate and adaptive immune systems.

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Question:

Opsonisation with reference to antigen –antibody interactions.

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Question:

Agglutination

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Question:

Neutralization

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Question:

Precipitation

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Question:

Explain different pathways that activate complement system and its various effects to eliminate the pathogens.

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Question:

Write a comparative note on the role of Thymus and Bone marrow with respect to immune response.

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Question:

Expand the following terms:

i) PAMPs

ii) PRPs

iii) DAMPs

iv) MBL

v) ADCC

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Question:

Define the following terms:

i) Tolerance

ii) Autoimmunity

iii) Phagocytic barriers of innate immunity

iv) Inflammation

v) Epitope

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Question:

i) ……………… virus binds to B-cells via type II complement receptors.

ii) Antibody toxin complex formed is cleared by ……………… .

iii) A chronic, debilitating disease called schistosomiasis is caused by …………… .

iv) An ……………… occurs when the body attacks its own self-cells tissues and other body constituents.

v) RNAase L that degrades the RNA of the virus is activated by an enzyme called ……………… .

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Question:

Possible origin of organelles

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