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Human Health and Disease · Question 29

NEET (UG) 2020MCQEasy📈 Topic in 50% papers+4−1
1

Identify the wrong statement with reference to immunity

  1. Active immunity is quick and gives full response.
  2. When exposed to antigen (living or dead) antibodies are produced in the host's body. It is called “Active immunity”.
  3. Foetus receives some antibodies from mother, it is an example for passive immunity.
  4. When ready-made antibodies are directly given, it is called “Passive immunity”

Answer

(1) Active immunity is quick and gives full response.

Solution

As per NCERT, when a host is exposed to antigens (living or dead microbes or other proteins), antibodies are produced in the host body; this is active immunity. Active immunity is slow and takes time to give its full effective response.

Ready-made antibodies given directly (e.g. from mother to foetus through the placenta) give passive immunity.

∴ Statement (1) is wrong.

Answer: (1)

NEET (UG) 2020

Keep practising — Human Health and Disease

2

Identify the correct pair representing the causative agent of typhoid fever and the confirmatory test for typhoid.

  1. Salmonella typhi/ Anthrone test
  2. Salmonella typhi/ Widal test
  3. Plasmodium vivax/ UTI test
  4. Streptococcus pneumoniae/ Widal test
NEET (UG) 2019
3

Colostrum, the yellowish fluid, secreted by mother during the initial days of lactation is very essential to impart immunity to the newborn infants because it contains :

  1. Macrophages
  2. Immunoglobulin A
  3. Natural killer cells
  4. Monocytes
NEET (UG) 2019
4

Drug called ‘Heroin’ is synthesized by :

  1. glycosylation of morphine
  2. nitration of morphine
  3. methylation of morphine
  4. acetylation of morphine
NEET (UG) 2019
5

Which of the following immune responses is responsible for rejection of kidney graft?

  1. Inflammatory immune response
  2. Cell-mediated immune response
  3. Auto-immune response
  4. Humoral immune response
NEET (UG) 2019
6

Which part of poppy plant is used to obtain the drug “smack”?

  1. Flowers
  2. Latex
  3. Roots
  4. Leaves
NEET 2018
7

Which of the following is not an autoimmune disease?

  1. Psoriasis
  2. Rheumatoid arthritis
  3. Alzheimer’s disease
  4. Vitiligo
NEET 2018
8

In which disease does mosquito transmitted pathogen cause chronic inflammation of lymphatic vessels?

  1. Elephantiasis
  2. Ascariasis
  3. Ringworm disease
  4. Amoebiasis
NEET 2018
9

Transplantation of tissues/ organs fails often due to non-acceptance by the patient's body. Which type of immune response is responsible for such rejections ?

  1. Cell-mediated immune response
  2. Physiological immune response
  3. Hormonal immune response
  4. Autoimmune response
NEET 2017
10

MALT constitutes about percent of the lymphoid tissue in human body

  1. 20%
  2. 70%
  3. 10%
  4. 50%
NEET 2017
11

Antivenom injection contains preformed antibodies while polio drops that are administered into the body contain -

  1. Attenuated pathogens
  2. Activated pathogens
  3. Harvested antibodies
  4. Gamma globulin
NEET 2016 (Phase 1)

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