00:01
Okay, so this question regards where root hairs are found in a root.
00:08
So let's just start out and think about by drawing a seed year.
00:14
So we plant a seed.
00:18
Eventually we watered enough and the seed will solid to germinate.
00:23
We'll get a plant growing at the top, but we'll also get a root system coming down at the bottom.
00:32
Okay? so that's what we're going to focus on here.
00:35
And so this is asking where the root hairs are found.
00:39
And so what we really need to look at is the different zones within a root.
00:48
So let's just take this as a root right here.
00:51
This will be the bottom down here.
00:55
And so our bottom section is going to include our root cap.
01:04
And this is what's going to include our root cap.
01:05
And this is what's going to be the bottom.
01:06
To be digging down into the soil.
01:10
And so the root cap essentially consists of a zone of cell division.
01:21
And so this is where cells are going to be actively dividing...