Discussion
What is Chemotaxis?
Answer: C
Correct answer: In the presence of a chemical compound, swimming towards or away of a bacteria
Chemotaxis is movement in response to a chemical gradient - towards an attractant such as a sugar or amino acid, and away from a repellent. The cell cannot sense a gradient across its own length, so it compares concentrations over time, lengthening its runs when conditions improve and tumbling when they worsen.
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