Tag: biology

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Questions Related to biology

Multiple choice biology diseases and hygiene anaemia mosquito and human health non communicable diseases

Allergies can be described as ______________________.

  1. Sneezing, itching, watery eyes, scratchy throat

  2. An overreaction from the immune system to a foreign substance

  3. The onset of a cold during spring months

  4. A reaction to the influenza virus during spring months.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Option $'B'$ is correct.


Allergies can be described as an overaction from the immune system to a foreign substance. Allergies occurs when the immune system overreacts to ordinarily formulas substances. The allergies reaction is a misguided reaction to foreign substance by the immune system. The common system is misguided is allergies. Allergies symptoms are sneezing, watery eyes, itching etc.

Multiple choice biology diseases and hygiene anaemia mosquito and human health non communicable diseases

Which of the following cell plays an important role in allergy?

  1. $T _K$ cell
  2. $N _K$ cell

  3. Mast cell

  4. Plasma cell
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Mast cells play a central role in IgE-mediated allergic reactions. When an allergen cross-links IgE bound to the surface of mast cells, they undergo degranulation and release histamine and other inflammatory mediators. T_K and NK cells are involved in cell-mediated immunity and tumor or virus killing.

Multiple choice biology diseases and hygiene anaemia mosquito and human health non communicable diseases

The class of drugs used to treat allergic reaction is called ________________.

  1. Histamines

  2. Histamine inhibitors

  3. Antihistamines

  4. Antibiotics
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Option "c" is correct . 


The class of drugs to treat allergic reactions are antihistamines. Antihistamines are drugs which treat allergies. it blocks histamine released from histamine-1 receptors. Antihistamines are very good at relieving symptoms of an allergic reaction such as edema, itch, rash, red and watery eyes, sneezing.

Multiple choice biology diseases and hygiene anaemia mosquito and human health non communicable diseases

Use of anti-histamines and steroids gives a quick relief from

  1. Allergy

  2. Nausea

  3. Cough

  4. Headache
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Antihistamines work well for treating allergy symptoms, especially when the symptoms do not happen very often or do not last very long.
Steroids (nasal steroids) also work when someone has allergy,
Therefore, the correct answer is option A.

Multiple choice biology diseases and hygiene anaemia mosquito and human health non communicable diseases

Increased asthmatic  attacks in certain seasons are due to 

  1. Inhalation of seasonal pollen

  2. Heat and huminity

  3. Low temperature

  4. Eating preserved fruits
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Asthma is a common long-term inflammatory disease of the airways of the lungs. Symptoms include episodes of wheezing, coughing, chest tightness, and shortness of breath. Environmental factors which are responsible for asthma include exposure to air pollution and allergens. The increased asthmatic attacks in certain seasons are due to the inhalation of seasonal pollen. Seasonal pollen is obtained by the dehiscence of pollen grain in a particular season to which a person may be allergic.

So, the correct answer is 'Inhalation of seasonal pollen'.

Multiple choice biology diseases and hygiene anaemia mosquito and human health non communicable diseases

Which of the following causes the seasonal allergy?

  1. Pollen

  2. Wheat

  3. Nuts

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Pollen allergy can is also called as 'seasonal allergic rhinitis'. Each spring, summer, plants release tiny pollen grains to fertilize other plants of same species. Most of pollens that cause allergic reactions  comes from trees, weeds and grasses

Multiple choice biology diseases and hygiene anaemia mosquito and human health non communicable diseases

Increased asthmatic attacks in certain seasons are related to

  1. Inhalation of seasonal pollen

  2. Eating of seasonal vegetables

  3. Low temperature

  4. Wet and dry environment
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Pollen allergies are very common and in a season of pollination. If a person inhales or come in contact with that pollen in the garden or area with lots of plants will create a severe impact and increase the asthmatic attack and other problems like sneezing and able to block certain passages inside the body.

So the correct option is 'Inhalation of seasonal pollen'.

Multiple choice biology diseases and hygiene anaemia mosquito and human health non communicable diseases

Choose the correct answer from the alternatives given.
Many allergic disorders are cured by giving antihistamines

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
During allergic reactions, basophils and mast cells release histamine. Many times antihistamines are given to people to counteract the action of histamine.
So, the given statement is true.