HIV

Q.

Which of the following diseases are caused by viruses containing DNA as their genetic material?

1. Smallpox

2. Chickenpox

3. HIV

4. Herpes

Q.

What is lacking in a virus which makes it dependent on a living cell to multiply ?

Q.

Name an inert virus?

Q.

Brief about the structure of HIV.

Q. True or False Questions

AIDS can be transmitted through blood transfusion.

1. True
2. False

Q.

Is virus a cell?

Q.

Classify the following diseases as infectious or non-infectious.
(i)AIDS (ii) Tuberculosis (iii) Cholera (iv)High blood pressure (v) Heart disease (vi) Pneumonia (vii) Cancer

Q.

What is lacking in virus which makes it dependent on a living cell to multiply?

Q.

What is Apoptosis ?

Q.

Classify the following diseases as infectious or non-infectious: (a) High blood pressure (b) Pneumonia (c) AIDS (d) Cancer (e) Heart disease (f) Tuberculosis (g) Cholera

Q.

AIDS spreads by shaking hands with infected person

1. True

2. False

Q. Name the virus that causes AIDS. What are the medium through which this virus is transmitted?

Q. What type of virus causes AIDS? Name its genetic material.

Q.

How do viruses know which host cell to attack?

Q.

Do viruses have protein coats?

Q. Identify the mismatch pair.

1. AIDS- Bacterial infection
2. Leprosy - Bacterial infectioin
3. Cholera - Bacterial infection
4. Malaria - Protozoan infection

Q. Draw the diagram showing the structure of HIV.

Q. Which of these technique are used for early diagnosis:

1. R-DNA technology
2. PCR
3. ELISA
4. None of the above

Q.

The virus causing AIDS cannot be transmitted to another person by

1. Infected needles

2. Blood transfusion

3. Shaking hands

4. Sexual contact

Q. Name the type of cells the AIDS virus first enters into after getting inside the human body. Explain the sequence of events that the virus undergoes within these cells to increase their progeny.

Q. Select the incorrect statement regarding AIDS.

1. It is an immunodeficiency disease.
2. HIV has RNA as its genetic material.
3. AIDS can be transmitted to an infant from the infected mother through her milk.
4. The time-lag between the infection and appearance of AIDS symptoms may vary form week to month.

Q. What is the mechanism by which AIDS virus causes deficiency of immune system of infected person?

Q. Identify the organism, disease caused and classification of the organism (whether virus, bacterium or protozoan) respectively, based on the given symptom.

1. Loss of immunity - HIV; AIDS; bacterium
2. Loss of immunity - HIV; AIDS; virus
3. Loss of immunity - Plasmodium; malaria; protozoan
4. Loss of immunity - Vibrio cholerae; cholera; bacterium

Q. When was the first AIDS case discovered in India?

1. 1986
2. 1987
3. 1985
4. 1982

Q. Covid, common cold, AIDS and influenza are caused by viruses.

1. True
2. False

Q.

AIDS is considered a syndrome and not a disease.
Give reasons.

Q. AIDS is transmitted ___.

1. Sexually
2. Blood transfusion
3. All of these
4. Perinatally

Q. AIDS is caused by HIV that primarily infects

1. All lymphocytes
2. Activator B cells
3. T-4 lymphocytes
4. Cytotoxic T cells

Q.

When should I take PEP medication?

Q. Immuno deficiency syndrome in human could develop as a consequence of

1. AIDS virus infection
2. Defective liver
3. Defective thymus
4. Weak immune system