Tobacco Mosaic Virus and its Infection Process
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Questions and Answers

How does the tobacco mosaic virus infect plants?

  • By contact between plants (correct)
  • Via pollinators
  • Through air transmission
  • By infecting the root system

What structural adaptations do pathogens have that enable them to cause disease?

  • Production of oxygen
  • Capacity to infect chloroplasts (correct)
  • Formation of an envelope
  • Ability to photosynthesize

How is HIV primarily transmitted?

  • By inhaling infected air
  • From sharing contaminated food
  • Through mosquito bites
  • Body fluids during unprotected sex (correct)

What does AIDS stand for?

<p>Acquired Immune Deficiency Syndrome (A)</p> Signup and view all the answers

What happens to infected individuals during the initial stages of HIV infection?

<p>They suffer from mild flu-like symptoms (A)</p> Signup and view all the answers

How do bacteria differ from other pathogens mentioned in the text?

<p>They lack a nucleus (B)</p> Signup and view all the answers

What is the role of antibodies in the immune system?

<p>Destroying pathogens (D)</p> Signup and view all the answers

How do pathogens spread in the body?

<p>Through air, water, or direct contact (D)</p> Signup and view all the answers

Where do most drugs originate from?

<p>Plants and microorganisms (A)</p> Signup and view all the answers

What is the main cause of AIDS?

<p>Pathogens transmitted through blood, sexual contact, or bodily fluids (D)</p> Signup and view all the answers

How does phagocytosis help in fighting infections?

<p>By engulfing and digesting pathogens (A)</p> Signup and view all the answers

What is the effect of antibodies on pathogens?

<p>Neutralizing pathogens and marking them for destruction (B)</p> Signup and view all the answers

What is the primary method by which a host cell reproduces thousands of identical copies of a virus when infected?

<p>Mitosis (B)</p> Signup and view all the answers

How can Gonorrhoea be prevented according to the text?

<p>Abstaining from sex or using condoms (B)</p> Signup and view all the answers

What is the role of antibodies in combating infections caused by bacteria like Salmonella?

<p>Neutralizing toxins produced by bacteria (D)</p> Signup and view all the answers

Which of the following is NOT mentioned as a source of Salmonella infection according to the text?

<p>Reheated vegetables (A)</p> Signup and view all the answers

Based on the text, what role do antibiotics play in treating Gonorrhoea?

<p>Directly attacking and killing the bacteria (D)</p> Signup and view all the answers

AIDS is caused by a virus known as:

<p>HIV (B)</p> Signup and view all the answers

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