The presence of what ion appears to be necessary for connecting the ciliary (axonemal)dynein arms to the A microtubules of the axoneme?
A)calcium
B)potassium
C)magnesium
D)manganese
E)sodium

Question

Quizplus · Accepted Answer

Research has shown that the presence of magnesium ion is essential for the attachment of axonemal dynein arms to the A microtubules. Magnesium ions help stabilize the interaction between dynein and the microtubules, enabling the movement of cilia and flagella. Calcium, potassium, manganese, and sodium ions do not have a significant role in ciliary dynein attachment.

The Presence of What Ion Appears to Be Necessary for Connecting