PT148.S3.Q23 > Question

SECTION 1 · lr

Question 1 Question 2 Question 3 Question 4 Question 5 Question 6 Question 7 Question 8 Question 9 Question 10 Question 11 Question 12 Question 13 Question 14 Question 15 Question 16 Question 17 Question 18 Question 19 Question 20 Question 21 Question 22 Question 23 Question 24 Question 25

SECTION 2 · rc

PASSAGE 1

Question 1 Question 2 Question 3 Question 4 Question 5 Question 6

PASSAGE 2

Question 7 Question 8 Question 9 Question 10 Question 11 Question 12 Question 13

PASSAGE 3

Question 14 Question 15 Question 16 Question 17 Question 18 Question 19

PASSAGE 4

Question 20 Question 21 Question 22 Question 23 Question 24 Question 25 Question 26 Question 27

SECTION 3 · lr

SECTION 4 · lr

The author hypothesizes that one of the functions of phenazines is to serve as molecular pipelines that give interior bacteria access to essential nutrients in the environment surrounding the colony.

The author assumes that it’s possible for phenazines to have more than one function. The author also assumes that phenazines are able to provide nutrients to interior bacteria.

This provides evidence that corroborates the author’s hypothesis. Without phenazines, more bacteria must contact the surrounding environment, possibly to get access to nutrients. This makes the theory that phenazines give interior bacteria access to nutrients more plausible.

This connects production of phenazines to foreign bacteria. But this has no clear impact. We want an answer that connects phenazines to the need to access nutrients.

We still have no reason to think phenazines provide nutrients to interior bacteria. If anything, this is in the direction of a weakener, since we might think non-phenazine bacteria shouldn’t grow as quickly when buried in the soil.

This connects phenazines to ability to fend off other bacteria. But this has no clear connection to the provision of nutrients to interior bacteria.

It doesn’t help the author’s hypothesis to learn that interior bacteria die more quickly. We would still have no reason to believe phenazines provide nutrients to interior bacteria.

PrepTest 148 - Section 3 - Question 23

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