00:01
Here we have a question that tells us that which statement about the cytoskeleton is true.
00:05
And we have five options.
00:06
Option a being the cytoskeleton in the eukaryotes is static in nature.
00:11
B says that the actin filaments are rarely found outside the nucleus.
00:14
C says that the cytoskeletons surrounding the lysosomes maintains the shave of the lysosomes.
00:19
Option d says that the cytoplasm's cytoskeleton changes but the protein filaments in the nucleus don't change during the cell cycle.
00:27
And option e says that none of the above were correct.
00:30
So we have to actually look at the options one by one to figure out which is the correct answer.
00:36
Now let's look at option a.
00:38
Let's first see what the cytoskeleton is actually made of.
00:42
So it can be divided into three parts.
00:44
First one is the actin filaments.
00:47
The second one is the microtubules.
00:50
And the third one is the intermediate filaments.
00:54
Now these three combine to make the cytoskeleton, which has the following functions.
00:59
So, it maintains the shape of the cell, its organization, then the movement, and also during cell division it is very active.
01:10
Now these are the function of the cytoskeleton.
01:12
So during cell division, it actually disassembles and then reassembles.
01:18
So from this we can say that the cytoskeleton is actually motile or dynamic in nature...