Question 1 (Worth 2 Points)

6.02 Quiz

Answer Key

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Question 1 (Worth 2 points)

SC.912.L.15.6
What is the function of the structure identified by the red arrow?

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Genetic information

Mobility

Food capture

Protection

Points earned on this question: 2

Question 2 (Worth 2 points)

What are key markers for the identification of Bacteria?

Peptidoglycan in cell membranes, ether-linked fatty acids, Special transcription DNA

Special RNA polymerase, peptidoglycan in cell walls, ester-linked fatty acids

Cellulose in cell membranes, ester-linked lipids in cell walls, special transcription DNA

Special RNA polymerase, peptidoglycan in cell membranes, chitin and cellulose cell walls

Points earned on this question: 2

Question 3 (Worth 2 points)

SC.912.L.15.6
What morphology is represented in the picture?

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filamentous

cocci

rod shaped q

spirilla

Points earned on this question: 0

Question 4 (Worth 2 points)

SC.912.L.15.6
According to the phylogenetic tree, from which domain did Eukarya evolve?

© 2011 FLVS

Animals

Bacteria

Thermotoga

Archaea

Points earned on this question: 0

Question 5 (Worth 2 points)

A student exposed to streptococcus comes down with a high fever. What is the likely cause?

Bacteria regression

Skin Adherence

Bacteria toxin

Antibiotic resistance

Points earned on this question: 2

Question 6 (Worth 4 points)

Explain how antibiotics are able to target the bacteria cells but not the healthy cells within your body.

Essay Submission

This is because before the antibiotics are made, they go through a some tests that check if the antibiotic will only target harmful bacteria inside your body and not harm nor target your healthy cells.

Points earned on this question: 4

Question 7 (Worth 4 points)

We often call bacteria ‘germs’ and think of them as cells that makes us sick. Argue against this idea. Provide two ways in which bacteria are helpful.

Essay Submission

We wouldn't be able to live without bacteria because they are the ones that protect us from diseases. They break down the food in our digestive system, this way, we can get more nutrients of the food we eat.
Bacteria are very helpful in the production of food as well. An example would be yogurt and cheese. This is because without bacteria, the sugar in the yogurt wouldn't turn into lactic acid and wouldn't give it a better taste.

Points earned on this question: 4

Question 8 (Worth 4 points)

Your doctor diagnoses you with Strep throat, and then prescribes you an antibiotic to take for 10 days. After 7 days, you feel much better and no longer show any symptoms. Is it ok to go ahead and stop taking the antibiotic? Explain your answer.

Essay Submission

No, because even though you are feeling better in the 7th day, not all bacteria must be destroyed yet by the antibiotics. There might still be some bacteria left and if you stop treating it, the bacteria might gain antibiotic resistance, which would make it stronger to the antibiotics and would cause the bacteria to get worse and possibly get another infection.

Essay Feedback

Ian- Nice work with your explanations! Ms Field

Points earned on this question: 4

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