Page 123 - Photosynthesis: The Green Miracle
P. 123
Plants’ specially designed sys-
tems permit their roots to grow Mimosas are very sensitive to touch, and can close all
in the direction of moisture. its leaves in just 1/10 second. The top photo was taken
before the mimosa was disturbed, when the plant had
opened its leaves as far as possible to take advantage
of the Sun’s rays. The bottom photo was taken after the
mimosa had been touched.
At left is a plant in the afternoon. At right is the same plant after its leaves have gone
dormant at night.
