Which of the following would occur if a motile bacterium were moving towards an attractant A) O a lower frequency of clockwise rotation of flagella B) O a greater frequency of counterclockwise rotation of flagella C) O a decrease in the frequency of tumbles D) OA, B, and C are correct E) OA and B are correct

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Which of the following would occur if a motile bacterium were moving towards an attractant?
A) Oa lower frequency of clockwise rotation of flagella
B) Oa greater frequency of counterclockwise rotation of flagella
C) Oa decrease in the frequency of tumbles
D) OA, B, and C are correct
E) OA and B are correct
F) OB and C are correct
Transcribed Image Text:Which of the following would occur if a motile bacterium were moving towards an attractant? A) Oa lower frequency of clockwise rotation of flagella B) Oa greater frequency of counterclockwise rotation of flagella C) Oa decrease in the frequency of tumbles D) OA, B, and C are correct E) OA and B are correct F) OB and C are correct
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Step 1

Chemotaxis is the movement of a cell towards or away from any chemical source. Two chemotaxes exist, positive and negative chemotaxis.  If a cell is attracted by the chemoattractant it is called positive chemotaxis while if the cell is repelled by the chemorepellant is known as negative chemotaxis. During such movement, bacteria swim by using flagellar rotation. 

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