cells get bigger
No, woody plants do not lack secondary growth. Secondary growth is the process by which plants increase their girth through the production of secondary tissues such as wood and bark, which woody plants exhibit. This growth allows woody plants to increase in size and longevity.
cells get bigger
cells get bigger
Plants that lack secondary growth increase girth through primary growth, which involves cell division and expansion in the primary tissues of the plant (such as the primary xylem and phloem). These plants rely on the activity of their apical meristems to produce new cells that allow for a limited increase in girth over time.
Herbaceous plants primarily exhibit primary growth but typically lack significant secondary growth. Primary growth allows them to increase in height and produce new leaves and flowers, while secondary growth, which thickens stems and roots, is more characteristic of woody plants. Consequently, herbaceous plants remain relatively soft and non-woody throughout their life cycle.
cells get bigger
In a monocot stem, vascular bundles are scattered throughout the stem. However, because the of the lack of vascular cambium, no secondary growth occurs in the monocot stem. As a result of increased cell size, the monocot stem will only increase in height only.
Lack of secondary growth in plants means that the stems do not thicken through the formation of additional vascular tissues, such as xylem and phloem, which typically occurs in woody plants. Instead, these plants may rely on primary growth, which primarily elongates stems and leaves. In some herbaceous plants, the absence of secondary growth can lead to a wider stem base due to the accumulation of water and nutrients within the existing tissues, promoting a more robust stem structure. However, this width is generally limited compared to woody plants with significant secondary growth.
cells get bigger
cells get bigger
No, mosses do not have secondary growth like vascular plants. They lack the vascular tissues needed for secondary growth, such as xylem and phloem, which are responsible for transporting water and nutrients throughout the plant. Mosses rely on diffusion to transport water and nutrients, limiting their size and complexity.
No, not all angiosperms undergo secondary growth. Secondary growth is primarily seen in woody angiosperms like trees and shrubs, where it contributes to the thickening of stems and roots. Herbaceous angiosperms, on the other hand, typically do not exhibit secondary growth.