Question

Bacteria do not always swim aimlessly but are attracted by such nutrients such as sugar and amino acids, and are repelled by harmful substances and bacterial waste products. Movement toward chemical attractants and away from repellents is called:________.
a) gliding motility.
b) tumbling.
c) chemotaxis.

Answer 1

Answer: C. Chemotaxis

Explanation:

The role of chem praxis is the directed migration of cells in response to concentration gradients of extracellular signals