Biology ยท General Awareness

Viral Diseases and Immunity

776 Questions

Viral diseases and immunity cover the structure, transmission, and diagnosis of viruses like HIV. Questions focus on disease pathways, immune responses, and prevention. Strong knowledge here provides an edge in biology scoring.

HIV and AIDS structureVirus transmission methodsImmune system deficiencyPathogen risk groupsMedical diagnosis methods

Viral Diseases and Immunity Questions

Multiple choice

What is the most common type of secondary immunodeficiency disorder?

  1. HIV infection

  2. Diabetes

  3. Cancer

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

HIV infection is the most common cause of secondary immunodeficiency disorders, as the virus directly targets and destroys immune cells, leading to a weakened immune system.

Multiple choice

What is the most common cause of tooth sensitivity in people with HIV/AIDS?

  1. Oral thrush

  2. Kaposi's sarcoma

  3. Non-Hodgkin lymphoma

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The most common cause of tooth sensitivity in people with HIV/AIDS is oral thrush. Oral thrush is a fungal infection that can cause white patches on the tongue and other parts of the mouth. This can lead to tooth sensitivity and other problems.

Multiple choice

Which of the following is an antiviral drug that is used to treat HIV/AIDS?

  1. Zidovudine

  2. Lamivudine

  3. Efavirenz

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

Zidovudine is an antiviral drug that is used to treat HIV/AIDS.

Multiple choice

Which infectious disease is the leading cause of death worldwide?

  1. HIV/AIDS

  2. Tuberculosis

  3. Malaria

  4. Hepatitis B
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Tuberculosis is the leading cause of death from a single infectious agent, responsible for an estimated 1.5 million deaths in 2020.

Multiple choice

Which infectious disease is caused by a virus that can be transmitted through sexual contact or sharing needles?

  1. HIV/AIDS

  2. Hepatitis B

  3. Syphilis

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

HIV/AIDS is caused by the human immunodeficiency virus (HIV), which can be transmitted through sexual contact, sharing needles, or from mother to child during pregnancy, childbirth, or breastfeeding.

Multiple choice

Which of the following is NOT a type of virus?

  1. DNA virus

  2. RNA virus

  3. Retrovirus

  4. Prion
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Prions are not viruses, but rather infectious proteins.

Multiple choice

What is the primary mechanism by which viruses enter host cells?

  1. Endocytosis

  2. Phagocytosis

  3. Pinocytosis

  4. Direct penetration
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Viruses typically enter host cells through direct penetration of the cell membrane, using specialized proteins or glycoproteins on their surface.

Multiple choice

Which type of immune response is primarily responsible for recognizing and eliminating virus-infected cells?

  1. Humoral immune response

  2. Cell-mediated immune response

  3. Innate immune response

  4. Adaptive immune response
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The cell-mediated immune response, particularly cytotoxic T cells, plays a crucial role in recognizing and eliminating virus-infected cells by directly targeting and destroying them.

Multiple choice

What is the full name of the virus that causes AIDS?

  1. Human Immunodeficiency Virus

  2. Acquired Immunodeficiency Syndrome

  3. Human Immunodeficiency Syndrome Virus

  4. Acquired Immunodeficiency Virus
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The full name of the virus that causes AIDS is Human Immunodeficiency Virus (HIV).

Multiple choice

How is HIV transmitted?

  1. Through contact with infected blood or bodily fluids

  2. Through casual contact such as shaking hands or hugging

  3. Through sharing food or drinks with an infected person

  4. Through insect bites
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

HIV is transmitted through contact with infected blood or bodily fluids, such as semen, vaginal fluid, rectal fluid, and breast milk.

Multiple choice

What is the difference between HIV and AIDS?

  1. HIV is a virus, while AIDS is a condition caused by HIV infection

  2. HIV is a sexually transmitted infection, while AIDS is not

  3. HIV can be cured, while AIDS cannot

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

HIV is a virus that attacks the immune system, while AIDS is a condition caused by HIV infection that can lead to life-threatening illnesses.

Multiple choice

What is the name of the first combination therapy for HIV?

  1. HAART

  2. CART

  3. ART

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

The name of the first combination therapy for HIV is Highly Active Antiretroviral Therapy (HAART).

Multiple choice

What is the goal of HAART?

  1. To cure HIV infection

  2. To prevent HIV transmission

  3. To suppress the virus and prevent the development of AIDS

  4. All of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The goal of HAART is to suppress the virus and prevent the development of AIDS.

Multiple choice

What is the current status of the HIV/AIDS pandemic?

  1. HIV/AIDS has been eradicated

  2. HIV/AIDS is a global health crisis

  3. HIV/AIDS is no longer a major public health concern

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

HIV/AIDS is a global health crisis that continues to affect millions of people worldwide.

Multiple choice

What are some of the successes in the fight against HIV/AIDS?

  1. The development of effective treatments

  2. The prevention of mother-to-child transmission

  3. The reduction in new HIV infections

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The fight against HIV/AIDS has seen a number of successes, including the development of effective treatments, the prevention of mother-to-child transmission, and the reduction in new HIV infections.