Apical meristem.
Primary growth in plants occurs at the apical meristem.
I suspect that like most green plants the potato has gibberellins (growth hormones) in the stem that migrate to the side of the stem opposite the sun. On that side they stimulate stem growth, causing the stem to bend towards the sun.
Increases in stem length occur at the apical meristem, which is a region of cell division located at the tip of the stem. This meristem is responsible for producing new cells that contribute to the growth and elongation of the stem.
Typically on the leaves, although some plants have modifications that allow for photosynthesis in the stem.
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.
Yes plant growth occurs at stem, leaves, flowers and roots. The flower after fertilization grow in to the fruit.
cells get bigger
cells get bigger
cells get bigger
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.
Auxins are substances that promote stem elongation and inhibit the growth of lateral buds. They are produced in the stem buds and root tips of plants.
Typically on the leaves, although some plants have modifications that allow for photosynthesis in the stem.