+ Cells & Disease Unit PreTest

+ Write the question on the front of each flashcard Write your best answer on the back of each flashcard

+ Question 1: Are all diseases infectious? Justify your answer using examples of diseases

+ Question 2: How are carriers and vectors similar? How are carriers and vectors different?

+ Question 3: What is the Germ Theory of Disease? Why was the microscope important in developing the Germ Theory of disease?

+ Question 4: What would happen to a cell if it’s cell membrane stopped working? Explain.

+ Question 5: How are viruses similar to bacteria and protists? How are viruses different from bacteria and protists?

+ Question 6: How do hand washing and chemical cleaners protect us from bacteria differently?

+ Question 7: Explain a class activity that taught us about how Chemical Cleaners work. A complete answer will include: What we did, What we saw, what our observations meant.

+ Question 8: When is the best time to get a vaccination, before or after getting the disease? Explain.

+ Question 9: Should you take an antibiotic if you have the flu? Why or why not?

+ Question 10: Compare the harmful bacteria population found in a person before they begin taking antibiotics to the harmful bacteria population found in the same person 3 days before they are done with their antibiotic prescription. Use this difference to explain why a person should always take the full course of an antibiotic.

+ Question 11: Draw a Plant Cell that includes the following parts. (label the parts in your drawing) Cell WallMitochondria Cell MembraneVacuole NucleusChloroplast Nuclear MembraneCytoplasm

+ Correct Your Answers Cross out incorrect answers Write down correct answers (for long answers use your own words)

+ Answer 1: Are all diseases infectious? NO Justify your answer using examples of diseases Some diseases are infectious (example of an infectious disease) But some diseases are not infectious (example of an infectious disease) you cannot catch this disease from another person.

+ Answer 2: How are carriers and vectors similar? Both carriers and vectors spread disease without showing symptoms of the disease How are carriers and vectors different? Carriers are people, vectors are animals

+ Answer 3: What is the Germ Theory of Disease? Disease is caused by tiny germs or microbes Why was the microscope important in developing the Germ Theory of disease? Microscopes helped scientists see germs/ microbes for the first time!

+ Answer 4: What would happen to a cell if it’s cell membrane stopped working? Explain. Cell membranes decide what enters and what leaves a cell. If the cell membrane stopped working the cell would probably die because the cell would not be able to take in nutrients and remove waste quickly enough to meet the cells needs.

+ Answer 5: How are viruses similar to bacteria and protists? Cause disease, too small to see w/o microscope, have genetic information How are viruses different from bacteria and protists? Viruses are not alive (not cellular)

+ Answer 6: How do hand washing and chemical cleaners protect us from bacteria differently? Hand washing removes bacteria/ microbes Chemical cleaners prevent bacteria / microbes from growing (and may kill them)

+ Answer 7: Explain a class activity that taught us about how Chemical Cleaners work. A complete answer will include: What we did, What we saw, what our observations meant. We placed tabs soaked in chemical cleaners on a dish infected with bacteria. We saw that the bacteria did not grow on or near the tabs soaked in cleaner. Our observations tell us that the cleaners are preventing the bacteria from growing. (We know this because the bacteria did grow on tabs that were only soaked in water)

+ Answer 8: When is the best time to get a vaccination, before or after getting the disease? Explain. It is best to get a vaccine BEFORE you get the disease. Vaccines expose your immune system to the disease microbe. This makes your immune system sensitive to the microbe in the future (when you are exposed to the disease). If you get the vaccine after catching the disease, the vaccine cannot improve your immune response.

+ Answer 9: Should you take an antibiotic if you have the flu? Why or why not? You should not take antibiotics to treat a flu infection Antibiotics only work against microbes that live outside of cells. Viruses (like the flu) are not alive. Antibiotics cannot work against viruses.

+ Answer 10: Compare the harmful bacteria population found in a person before they begin taking antibiotics to the harmful bacteria population found in the same person 3 days before they are done with their antibiotic prescription. In the beginning the population is mostly bacteria that are the least resistant to the antibiotic After taking the antibiotic, the population is mostly / all resistant or extremely resistant bacteria Use this difference to explain why a person should always take the full course of an antibiotic. You should always take the full course because that is the amount of antibiotic necessary to kill the whole population of bacteria. If you do not, you will create a population of bacteria that cannot be killed by that antibiotic 

+ Answer 11: Nuclear Membrane