Which statement best characterizes primary growth? a. It does not occur in roots, only in shoots. b. It leads to the development of cork tissue. c. It produces the dermal, ground, and vascular tissues. d. It produces rings of xylem, phloem, and cork tissue.

Video transcript

Welcome back. Let's look at our next problem. An increase in the length of the plant body is term primary growth. It is the result of cell division in the blank while primary growth occurs in the tips of the roots and shoot have a plant. And this is the takes place in the typical mary stem. Which is our choice a here when you have cell division in the lateral mary stem which is our choice be here. That's called secondary growth. So that's not our answer. And that results in increase in girth of the plants, the roots and stems getting wider. So that lateral mary stem is cell division and lateral mary stem. Uh It's called secondary growth. So I'll say increase in girth. And there's two types of lateral mary stem and they are our choices C. And D vascular camby. Um In court can be. Um So they're also not our answers. Since that's where secondary growth occurs. Um When those roots or stems are increasing in girth, it forms the cylinder of new tissue, that's the vascular camby. In. And in the court can be um Is those cells that produce produce cork sells for that part that produces cork cells in the bark of woody plants. So that's also part of the lateral mary stem. But they are both sources of secondary growth, not primary growth. So an increase in the length of plant body is primary growth and as a result of cell division in the choice a typical mary stem. See you in the next video