Questions Related to allergy

Multiple choice zoology important and common human diseases allergy and autoimmune diseases allergy non infectious diseases
Which of the following causes almost unbearable irritation of the skin?
  1. Lint of Gossypium

  2. Staminal hair of Tradescantia

  3. Prickles of Rosa indica

  4. Stinging hair of Urtica dioca

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The trichomes of Utrica cover the leaf and the stem surfaces, each trichome has a base attached to the epithelial layer, and a cell filled with irritant/allergent at the tip, that breaks on mechanical damage, touch, or when attempted to be eaten by herbivores. On breaking the chemical substances are injected into the predator causing unbearable irritation.

So, the correct answer is 'Stinging hair of Urtica dioca'

Multiple choice zoology important and common human diseases allergy and autoimmune diseases allergy non infectious diseases

A noninfectious unnatural and unusual reaction to a substance or condition is 

  1. Immunity

  2. Allergy

  3. Infection

  4. Toxin

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Allergies, also known as allergic diseases are a number of conditions caused by hypersensitivity of the immune system to typically harmless substances (non-infectious) in the environment.  Symptoms may include red eyes, an itchy rash, sneezing, a runny nose, shortness of breath, or swelling. Hence, Allergy is a noninfectious, unnatural and unusual reaction to a substance or condition.

So, the correct answer is 'Allergy'.

Multiple choice zoology important and common human diseases allergy and autoimmune diseases allergy non infectious diseases

Excessive and inappropriate immune response to an antigen is 

  1. Anaphylaxis

  2. Multiple Sclerosis

  3. Allergy

  4. Immune deficiency

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Allergies, also known as allergic diseases are a number of conditions caused by hypersensitivity (excessive) of the immune system to typically harmless substances in the environment. Symptoms may include red eyes, an itchy rash, sneezing, a runny nose, shortness of breath. Food, insect stings, and medications are common causes of severe reactions.

So, the correct answer is 'Allergy'.

Multiple choice zoology important and common human diseases allergy and autoimmune diseases allergy non infectious diseases

How many sentences is/are true among the following sentences?
(a) Allergy is due to release of histamine and serotonin from mast cells.
(b) Cell mediated immunity is responsible for rejection of graft.
(c) Principles of vaccination is based on diversity of immune system.
(d) Both bone marrow and thymus provides micro environment for development and maturation of T-lymphocytes.

  1. One

  2. Two

  3. Three

  4. Four

Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice zoology important and common human diseases allergy and autoimmune diseases allergy non infectious diseases

Write true or false and correct the incorrect statement.
Allergens are the antibodies which include dust, pollen, certain foods, drugs and fur.

  1. True

  2. False

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Allergens are actually antigens, which are foreign substances that stimulate an immune response and lead to the production of IgE antibodies, rather than being antibodies themselves. Therefore, the statement is false.

Multiple choice zoology important and common human diseases allergy and autoimmune diseases allergy non infectious diseases

Antihistamine drugs are effective against

  1. Bacterial infection

  2. Viral infection

  3. Paraplegia

  4. Allergy

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Antihistamines are drugs that inhibit the action of histamine in the body by blocking the receptors of histamine. When the histamine recepotrs are stimulated by histamine, it may produce allergic reactions, such as itching, hay fever and rash or hives. Antihistamines treat the symptoms of such allergic reactions.
Thus, the correct answer is option (D), 'Allergy'.

Multiple choice zoology important and common human diseases allergy and autoimmune diseases allergy non infectious diseases

Which of the following are the symptoms of eczema, a common skin disease?

  1. Skin becomes thickened and reddish brown colour

  2. Skin drops off in the form of small scales

  3. There will be an intense itching

  4. All of the above

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
The classic symptoms of eczema are: itching - this is the worst aspect because it can make the person scratch causing further rawness of the skin and possible infections to develop; redness - caused by extra blood flowing through the blood vessels in the skin in the affected area; a grainy appearance to the skin, caused by tiny fluid filled blisters just under the skin called vesicles; weeping when the blisters burst, either by themselves or because of scratching, and the fluid oozes on to the surface of the skin; crusts or scabs that form when the fluid dries; dry, scaly skin - this may be the result of the disease or it may also be the natural skin type of the family; dry skin can be a predisposing factor to developing eczema; pale patches of skin may appear because eczema can disturb the production of pigment which controls skin colour; lichenification - a leathery, thicker skin area in response to scratching.  
Therefore, the correct answer is option B.