Download Station #1 – Insect Insanity

Station #1 – Virus Life Cycle
The diagram below shows you how a virus (bacteriophage) uses a host cell (bacteria) to reproduce.
Analyze the diagram and write a description for each step of the life cycle on your answer sheet.
Station #2 – Virus Size
Directions: Analyze the picture below and answer the questions that follow. Note that the
diagram shows the sizes of several viruses compared to a bacterium and a red blood cell.
1. Which is larger, a bacteria cell or a virus particle? Write the answer on your answer sheet.
2. How much larger in nanometers (nm) is a Red Blood Cell compared to the cold sore virus? HINT: Show the math work on
your answer sheet.
3. How much larger in nanometers (nm) is a Red Blood Cell compared to the Streptococcus bacterium? HINT: Show the
math work on your answer sheet.
4. What are the two parts to a virus particle? Write the name of these two parts on your answer sheet.
Station #3 – Viruses & Vaccines
Directions: a. Click “Play” and watch the Discovery School Clip titled: Vaccines_2min55sec. As you
watch, answer the questions below.
1. The first vaccine was made for a measle-like disease. What was the name of this viral disease?
2. What proteins in our body rush to the virus and mark it for destruction?
3. What cells in our body come in afterwards to eat the dead, infected ones?
4. In 1955 a scientist killed a virus with formaldehyde and used it to create a vaccine. What was the name of the viral
disease?
Station #4 – Virus Vocabulary
Directions: Match the term in column A with the definition
in Column B.
Column A
1.
2.
3.
4.
5.
6.
7.
8.
parasite
host
genetic material
protein coat
vaccine
bacteriophage
HIV
influenza
Column B
A. the cell that a virus infects
B. allows the virus to trick the host cell and enter without detection
C. the part of the virus that codes for its traits
D. used for defending against virus
E. the virus which leads to AIDS
F. the virus which infects bacteria cells
G. the virus which infects respiratory cells in nose and throat
H. something which causes harm to an organism
Station #5 – Bacteria Cell Structure
Directions: Use the diagrams below to answer the following questions.
Diagram A
Diagram B
1.
2.
3.
Diagram C
1.
2.
3.
4.
5.
What cell part is indicated by Label 1?
What cell part is indicated by Label 2?
What cell part is indicated by Label 3?
Which type of bacteria is pictured in Diagram A?
Which type of bacteria is pictured in Diagram B?
6. Which type of bacteria is pictured in Diagram C?
Station #6 – Bacteria Cell Reproduction
Directions: Use the graph below to answer the following questions.
1. Which variable is being plotted along the horizontal axis (x-axis)?
2. Which variable is being plotted along the vertical axis (y-axis)?
3. According to the graph, how many bacteria cells are there after:
(HINT: Bacteria double every 20 minutes so make sure to calculate
the exact number)
a. 20 minutes?
b. 40 minutes?
c. 60 minutes?
4. Describe the pattern you see in the way the bacteria population
increases over two hours?
5. According to the graph, bacteria divide by a process called BINARY
FISSION. Is this process considered asexual or sexual
reproduction? Explain your answer.
Station #7 – Virus? Bacteria? Or Both?
Directions: If the statement describes a virus write “Virus” on your answer
sheet. Write “Bacteria” if it describes bacteria. And write “Both” if it describes both.
Statement
1. Is a unicellular living organism
2. Contains genetic material
3. Can be treated by antibiotics
4. Can be prevented with a vaccine
5. Can lead to the disease called Tetanus
6. Can lead to the disease called Salmonella
7. Can lead to the disease called Chickenpox
8. Can cause harm to another organism
9. Needs a host cell in order to reproduce
10. Reproduces by binary fission
11. Can come in many different shapes
12. Can be helpful to other living organisms
13. Can be viewed with a compound microscope
14. Its genetic material can become mutated
15. Can lead to the common cold
Virus
Bacteria
Both
Station #8 – Good Bacteria or Bad Bacteria?
Directions: - Read each scenario and decide if the bacteria are helpful or harmful. Write
“Good” if they are helpful and “Bad” if they are harmful. Make sure to provide a reason for
your answer.
1. A strain of bacteria was found in hamburger meat being produced by a food plant. The hamburgers were eaten by
people in several states. Many went to doctor after eating the burgers. Are these bacteria good or bad? Why?
2. Many people create a compost pile in their backyard where they throw organic material into the soil. Banana peels, egg
shells, coffee grinds, and old fruits and vegetables are decomposed (broken down) by bacteria. Are these bacteria
good or bad? Why?
3. A factory releases a chemical into the water as part of its manufacturing process. A group of bacteria living in the
water eat the chemical being released. Are these bacteria good or bad? Why?
4. Several bacteria are used in the food making process to create soy sauce, yogurt, apple cider, pickles, and sour cream.
Are these bacteria good or bad? Why?
5. Several people were working to remodel a home. While tearing down walls and ripping up floors, many workers cut
themselves with rusty nails. The workers were concerned that bacteria may have entered their system. Are these
bacteria good or bad? Why?
Station #9 – Classifying Bacteria
Directions: Define the following terms.
1. Define the term “autotrophic”.
2. Define the term “heterotrophic.”
3. Define the term “aerobic.”
4. Define the term “anaerobic.”
5. Classify each bacteria as Autotrophic or
Heterotrophic. Write the answer on
your answer sheet.
a. Bacteria that feed on raw meats like chicken and fish
b. Bacteria that feed off milk and turn it into yogurt
c. Bacteria in the ocean that use chemicals (sulfur) to make their own energy
d. Bacteria that live on the surface of water to capture sunlight
e. Bacteria that break down dead plants and animals.
Station #10 – Bacteria & Natural Selection
Many antibiotics no longer work to kill certain bacteria. Doctors say that the bacteria have
evolved a resistance to the medicine. This means that the bacteria DO NOT DIE when exposed to
the medicine. Sometimes doctors must prescribe 2 or 3 different antibiotics before the person
gets better. The carton above shows how bacteria can evolve this resistance.
1. Use 5 key terms: Variation, Adaptation, Survival, Reproduce, and Evolution to explain how natural selection
works to create resistant bacteria.
2. Look at the first picture. What does the starred helmet represent?
3. Look at the third picture. What process is taking place? Make sure to give the exact scientific name of the
process.