Bacteria swim by rotating their flagella. Counterclockwise rotation results in a

Question

Bacteria swim by rotating their flagella. Counterclockwise rotation results in a smooth swimming motion, whereas clockwise rotation induces tumbling and a change of direction. Place the following events in the correct order for a bacterial cell that is moving toward a repellent, such as a weak acid. Cell moving toward repellent Cell changes direction the phosphorylated messenger protein (response regulator) binds to the flagellar motor a repellent binds to a receptor on the cell's surface the direction of the motor reverses, and the cell tumbles the phosphoryl group is transferred to the Asp residue of a second protein the bound receptor initiates auto phosphorylation of a His residue on an intracellular domain

Explanation / Answer

The first step would be :

a repellent binds to a receptor on the cell's surface

Second: the bound receptor initiates autophosphorylation of a His residue on an intracellular domain

Third: The phosphoryl group is transferred to the Asp residue of a second protein

Fourth: The phosphorylated messenger protein binds to the flagellar motor

Fifth: The direction of the motor reverse, and the cell tumbles

Related Questions

Navigate

• Browse (All)
• Browse B
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.