00:02
This question asks, siv tubes are part of which of the following? and our answer choices are cortex, mesophyll, flowum, and xylem.
00:12
So we would first want to define what phloem is.
00:18
Floem is going to be the method of transport or movement or responsible for the movement of sugar from our source region, to this sugar sink region.
00:39
And usually we would see this as a movement of sugar from our leaves to our roots.
00:49
And that's where we would usually store the sugar, or maybe not necessarily in the roots themselves, but in a sugar sink such as a beet, because we know that the beet itself will be a sugar sink.
01:00
Whereas the leaves that are outside of the soil, so if we think about a beet, right, we know that it's going to be like this.
01:05
The main beet part is underneath the ground and then there will be some roots.
01:11
Then there are going to be these leaves that are on the exterior.
01:17
And these leaves will take in our sunlight, form photosynthesis, and then we see that our glucose travels down into the beet...