00:01
So here, when we talk about the cellular works, so this is a very broad classification that the cellular work, which we are talking about.
00:11
So cellular work are mainly described under the three categories.
00:15
A cell has to do work for the three things.
00:18
So first kind of the work which is falling under the cellular work, it is a chemical work.
00:25
And other class of the work which is needed, it is called this mechanism.
00:31
Mechanical work, mechanical work.
00:36
And another category of the work, it is a transport work.
00:40
So these three categories of the work are there.
00:43
So what is the chemical work? so when we say this chemical work, it is like this, any chemical transformation it is occurring.
00:51
Let us say it is any substrate, let us say it is of any group which is bound.
00:56
And any other group will come and it will be getting replaced.
00:59
So for this kind of replacement, certain amount of the energy it is required and that is called the chemical work...