Free Human Health And Diseases (Daily Quiz: 18) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Free Human Health And Diseases (Daily Quiz: 18) Time:

Question-1

Hormone produced against allergic reaction is

(a)

(b)

(c)

(d)

Explanation:

Answer: (c)

Hormone produced during allergic reaction is glucocorticoids. Allergic reactions typically have an adrenal component. Cortisol, one of the primary hormones produced by the adrenal glands, is a strong anti-inflammatory agent. For this reason proper adrenal function plays an important role in mediating the histamine release and inflammatory reactions that produce the symptoms experienced with allergies. Glucocorticoids are part of the feedback mechanism in the immune system that turns immune activity (inflammation) down. They are therefore used in medicine to treat diseases caused by an overactive immune system, such as allergies, asthma, autoimmune diseases, and sepsis.


Question-2

Common cold differs from pneumonia in that

(a)

(b)

(c)

(d)


Question-3

The agents which can cause neoplastic cell generation are

(a)

(b)

(c)

(d)


Question-4

AIDS is due to

(a)

(b)

(c)

(d)

Explanation:

Answer: (b)

‘Helper T’ lymphocytes play a great role in regulating the immune system. Damages to or destruction of ‘helper-T’ lymphocytes lead to the development of a cellular immune deficiency which makes the patient susceptible to wide variety of infections.


Question-5

Antibodies present in colostrum which protect the new born from certain diseases is of

(a)

(b)

(c)

(d)

Explanation:

Answer: (a)

During the initial days of lactation the yellowish fluid colostrum is secreted by mother. It has abundant antibodies (IgA) that protects the infant from several diseases.

IgG immunoglobulin (antibody) is most abundant (appro.80%) antibody in human and found in serum IgA is second abundant (approx. 10-15%) antibody. It is found in saliva and tear also. IgD and IgE constitute 2-3% of total antibodies which are found in most cells and serum.


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