Question
Biology Question on plant growth and development
Auxin regulates cell growth by which of the following mechanisms ?
A
Altering the elasticity of cell walls
B
Altering the plasticity of cell walls
C
Synthesizing new cell walls
D
Breaking down cell walls in growing cells
Answer
Altering the plasticity of cell walls
Explanation
Solution
Altering the plasticity allows for permanent changes in cell wall shape. The cell wall must increase in size in order for cell growth to occur.