Question

Auxins response to light (phototrophism)In shoots:In roots:

Accepted Answer

Shoots:1-More light reaches one side of a shoot2-More auxin is sent down the shaded side of the shoot3-Resulting in cells in the shaded regionelongating more4-Therefore the shoot grows towards the light.Roots:In roots auxin moves to the bottom of the root and causes less elongationtherefore root grows downwards.

Front	Auxins response to light (phototrophism) In shoots: In roots:
Back	Shoots: 1-More light reaches one side of a shoot 2-More auxin is sent down the shaded side of the shoot 3-Resulting in cells in the shaded regionelongating more 4-Therefore the shoot grows towards the light. Roots: In roots auxin moves to the bottom of the root and causes less elongation therefore root grows downwards.

Shoot Light Roots Side Auxin Shaded Grows Response