BT102 Final Term Past Paper by Amaan Khan

BT 102 Final term Subjective

Q1. Hypersensitivity and it’s types. 10 Marks

Hypersensitivity: Abnormal antigenic response

antigens are called allergens. acts in a damaging manner.

Types of Hypersensitivity:

complex) mediated)

Type I (Anaphylactic)

is involved which binds to mast cells

reactions

ELISA

Type II (Cytotoxic)

Involves reaction is an example. Diagnosis Cell deficiencies number of RBCs due to hemolysis platelets are involved.

Rx

Avoid those drugs that cause it. with correct blood type treatment

serum IgM

Type IV (delayed cell mediated)

• Originally called

tuberculin reaction

• Robert Koch performed the test.
• Contact dermatitis is the most common example. Involves:
• Antigen
• T cells
• Macrophages
• Transplant rejection is good example.
• Reaction to hair dye

Diagnosis:

• Skin testing
• Rx: symptomatic
• Avoid contact

Q2. Types of algae. 5 Marks

Types of Algae: There is various type of Algae are discussing below:

Phaeophyta (Kelp)

Brownish in colour. acid cell walls

xanthophylls

Rhodophyta

phycobiliproteins

and carrageenan

Chlorophyta

algae