Effect of Antibiotics on Bacteria Growth

Effect of Antibiotics on Bacteria Growth

Assessment

Flashcard

Biology

8th Grade

Hard

Created by

Rosemary Matthews

Used 1+ times

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7 questions

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1.

FLASHCARD QUESTION

Front

What should be done after soaking a filter paper disc in an antibiotic?

Back

Place the disc on a Petri dish with bacterial culture.

2.

FLASHCARD QUESTION

Front

What temperature and duration are recommended for incubating the Petri dish?

Back

Incubate for 48-72 hours at 25 °C.

3.

FLASHCARD QUESTION

Front

What is measured to compare the antibacterial properties of the chemicals?

Back

Measure the radius/diameter of any clear zones around the discs.

4.

FLASHCARD QUESTION

Front

What conclusion can be drawn if there is no clear zone around a disc soaked in antibiotic?

Back

The bacteria are resistant to that antbiotic.

5.

FLASHCARD QUESTION

Front

Name one factor that should be controlled to ensure a fair test when comparing results.

Back

Using the same type of bacteria.

6.

FLASHCARD QUESTION

Front

What is another factor that needs to be controlled for a valid test?

Back

Using the same antibiotics.

7.

FLASHCARD QUESTION

Front

How would you know which antibiotic is the most effective?

Back

The one with the largest clear zone around it.