Question

Unit 1 Plants
a
Explain why the roots of a plant grow in all directions if there is no gravity,
b Describe how this problem has been solved in the Space Station.​

Answer 1

Answers:

a. Roots apparently don't need gravity to orient their directional skewing. ... "It seems that other features of the environment are also required to ensure that a root grows away from the seed, thereby enhancing its chances of finding sufficient water and nutrients to ensure its survival."

b. In the absence of gravity, plants use other environmental factors, such as light, to orient and guide growth. A bank of light emitting diodes (LEDs) above the plants produces a spectrum of light suited for the plants' growth.