Human Health and Disease Test

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Human Health and Disease Test - 67

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Weekly Quiz Competition

Question 1
1 / -0

At which stage of HIV infection does on usually show symptoms of AIDS?

A
When the infecting retrovirus enters host cells

B
When vital DNA is produced by reverse transcriptase

C
When HIV replicates rapidly in helper T-lymphocytes and damage large number of these

D
Within $$15$$ days of sexual contact with an infected person
Solution
Correct Option: C
Explanation:
- There are three stages in the development of AIDS.
- The first stage is 'acute HIV infection' which is the earliest stage of HIV and develops within 2-4 weeks after a person is infected with HIV and here people have flu-like symptoms.
- The second stage is 'chronic HIV infection' where HIV continues to multiply in the body but at very low levels.
- The last and final stage of HIV infection is AIDS. AIDS is diagnosed when a person with HIV has a T lymphocytes count of fewer than 200 cells/cubic mm and/or one or more opportunistic infections.
- HIV uses the machinery of these T lymphocytes for replication and destroys them rapidly.
Question 2
1 / -0

HIV decreases natural immunity of the body by destroying

A
Erythrocytes

B
Antibodies

C
T-Lymphocytes

D
B-Lymphocytes

Solution

The T helper cells (Th cells), also known as CD4 cells, are a type of T cell that plays an important role in the immune system, particularly in the adaptive immune system. HIV is a virus that attacks the CD4+ cells in the immune system. This destroys the CD4+ cells. When the number of CD4+ cells in your body is low, your immune system becomes weaker. This makes it harder to fight infections.

So, the correct answer is 'T-Lymphocytes'.
Question 3
1 / -0

Select the incorrect statement from following :-

A
Rheumatoid is an autoimmune disease

B
Metrocity children of india suffer from allergy and asthma.

C
Spleen does not contain macrophages.

D
HIV,replicates in $$T_H$$ cells.
Question 4
1 / -0

Immunization builds up _______________.

A
Innate immunity

B
Infantile immunity

C
Acquired immunity

D
Blood clothing
Question 5
1 / -0

__________ is the process of developing immunity or resistance against a particular disease

A
Immunization

B
Sterilization

C
Fertilization

D
None of these

Solution

Immunization is a process in which a person is a mode immune to a specific infectious agent by the administration of a vaccine. It triggers the immune system to fight against certain infectious against which causes as disease.
Question 6
1 / -0

Select the incorrect statement:

A
Macrophage cells act as factory of HIV

B
HIV, replicates macrophage

C
HIV is a picornavirus

D
In AIDS CDS count$$<200\times10^6litre$$
Solution
Correct Option: C
Explanation:
HIV is a retrovirus that causes AIDS. Retrovirus is a single-stranded positive-sense RNA virus with a DNA intermediate.
These viruses carry the genes codes for enzyme reverse transcriptase which produce cDNA from RNA which can be integrated into the host genome.
So HIV is a retrovirus because its genetic information is carried in RNA and not as DNA.
Question 7
1 / -0

An intestinal parasite which causes blockage of the intestinal passage and whose eggs are excreted along with the faces of infected person is____

A
Wuchereria bancrofti

B
Ascaris

C
Epidermophyton

D
Microsporum

Solution

Ascaris a common round worm is responsible for Ascariasis which is an Intestinal parasite. Symptoms include;

Internal bleeding, muscular pain, fever, anemia and eggs of parasite excrete along with feces of infected person.
Question 8
1 / -0

The complement system is a defensive system which consists of over 30 plasma proteins. It function by

A
Creating pores in the plasma membrane of microbes

B
Casuing release of histamine from mast cells

C
Rising temperature of body

D
Stimulating the unattacked cells to release antiviral proteins
Question 9
1 / -0

The correct statement about active immunity is:

A
It provides immediate relief

B
It is long lasting immunity with no side effects

C
ATS is used for active immunisation

D
It cross the placental barrier

Solution

Active immunity is the antibody response produced by the body when exposed to pathogens, vaccines etc. It is a long-lasting immunity and has no side effects as these are WBCs produced by the body.
So, the correct answer is 'it is long-lasting immunity with no side effects'.
Question 10
1 / -0

From which of the given plants is the drug whose skeletal structure given is extracted ?

A
Papaver somniferum

B
Atropa belladonna

C
Cannabis sativa

D
Erythroxylum coca

Solution

The Skeletal structure is of cannabinoid molecule. Which is obtained from Cannabis sativa
So, the correct answer is 'Cannabis sativa'

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Re-Attempt Weekly Quiz Competition

Human Health and Disease Test - 67

Result

Human Health and Disease Test - 67

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SHARING IS CARING

Question 1

When the infecting retrovirus enters host cells

When vital DNA is produced by reverse transcriptase

When HIV replicates rapidly in helper T-lymphocytes and damage large number of these

Within $$15$$ days of sexual contact with an infected person

Solution

Question 2

Erythrocytes

Antibodies

T-Lymphocytes

B-Lymphocytes

Solution

Question 3

Rheumatoid is an autoimmune disease

Metrocity children of india suffer from allergy and asthma.

Spleen does not contain macrophages.

HIV,replicates in $$T_H$$ cells.

Question 4

Innate immunity

Infantile immunity

Acquired immunity

Blood clothing

Question 5

Immunization

Sterilization

Fertilization

None of these

Solution

Question 6

Macrophage cells act as factory of HIV

HIV, replicates macrophage

HIV is a picornavirus

In AIDS CDS count$$<200\times10^6litre$$

Solution

Question 7

Wuchereria bancrofti

Ascaris

Epidermophyton

Microsporum

Solution

Question 8

Creating pores in the plasma membrane of microbes

Casuing release of histamine from mast cells

Rising temperature of body

Stimulating the unattacked cells to release antiviral proteins

Question 9

It provides immediate relief

It is long lasting immunity with no side effects

ATS is used for active immunisation

It cross the placental barrier

Solution

Question 10

Papaver somniferum

Atropa belladonna

Cannabis sativa

Erythroxylum coca

Solution

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