Question

What causes differential growth in stem plant cells? thigmotropy auxins starches elongation

Answer 1

"Auxins stimulates the elongation of cells in the plant cell and triggers phototropism (the growth of plants towards light)."

Answer 2

auxins

Step-by-step explanation:

Auxins are natural plant hormones that act on the plant's cell wall, promoting its distension and, consequently, cell elongation, including plant stem cells. This function promotes the growth of the parts of the plant, causing the elongation of the stem and even the apical dominance that allows the center of the plant's crown to grow more than its sides.