Eukaryote, Prokaryote, Virus

Name Period Date Eukaryote, Prokaryote, Virus: 1. What is a prokaryote?

2. What is a eukaryote?

3. What is a virus?(see page 482)

Why can’t antibiotics kill a virus?

Video 1: Body Story Spreading Menace 1. Was Mike infected by a prokaryote, eukaryote, or virus? Explain.

2. How could Mike’s wife have destroyed the pathogen?

3. What happens to most of the pathogens once they reach Mike’s stomach.

4. During the early hours of infection, what happens to the population of pathogens in Mike’s gut?

5. What triggers Mike’s immune system to produce and deploy macrophages?

6. How did Mike’s body attempt to eject the pathogen? List at least two strategies and use scientific terms to describe how each is achieved.

7. Why does Mike become dehydrated? Explain.

8. Why does the video refer to diarrhea pills as, “Just a quick fix?” Why is Mike at a disadvantage after taking the diarrhea pills?

9. What do Mike’s immune system, “Helper cells,” do? What cells do they help?

10. What happens to the photographer who gets the Ben’s Hens job? Video 2 Body Snatchers 1. What nonspecific defenses are Holly’s first line of defense against the virus?

2. How does the flu virus, “trick,” a cell in order to infect it?

3. What makes Holly’s throat red and irritated?

4. What do interleukins do?

5. What do dendritic cells do?

6. How does the T-cell become an effective fighter in the battle against the virus.

7. Why is coughing a sign that Holly’s body is winning the battle?

8. Where do antibodies come from and what do they do?

9. What are memory cells? What do they do?

10. Holly has memory cells to protect against Influenza B. Is she immune forever? Explain.

Follow up questions: 1. Was Holly infected by a eukaryote or a prokaryote? Explain.

2. Who would have most benefited form an antibiotic, Holly or Michael? Explain.