Which of the following statements regarding c | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The correct answer is $B$. Cilia are fine,hair-like,vibratile cytoplasmic processes found on certain cell types. Their movement either propels the

Vedclass · Accepted Answer

The organized beating of cilia is controlled by fluxes of $Ca^{2+}$ across the membrane.

Vedclass · Answer

(B) The correct answer is $B$. Cilia are fine,hair-like,vibratile cytoplasmic processes found on certain cell types. Their movement either propels the organism or moves the surrounding medium past a fixed cell. Cilia are enclosed by a unit membrane,which is an extension of the plasma membrane. Within the membrane is a fluid matrix containing a supporting axial shaft called the axoneme. The axoneme typically shows a $9+2$ arrangement,where nine doublets of microtubules are arranged in a ring around two central singlet microtubules. These microtubules are composed of globular units of the protein tubulin. The arms of the $A$ microtubules contain the protein dynein,which acts as an $ATPase$ enzyme to catalyze the hydrolysis of $ATP$ to $ADP$,providing energy for ciliary movement. Statement $B$ is incorrect because the beating of cilia is primarily driven by the sliding of microtubule doublets powered by dynein-mediated $ATP$ hydrolysis,not by $Ca^{2+}$ fluxes across the membrane.

Which of the following statements regarding cilia is not correct?

Similar Questions

Which organelle,involved in cell division,is absent in plant cells?

Cilia and flagella are responsible for which of the following processes?

How many total microtubules are present in the structure of a centrosome?

$A$ centrosome is:

In the structure of the centrosome, how are the two centrioles arranged?

Vedclass Test Series

Exam Paper Generator

Online Exam Module