Plants growing in a partially dark environment will grow toward light in a response called phototropism. Choose the incorrect statement regarding phototropism.
A)It is caused by a chemical signal.
B)One chemical involved is auxin.
C)Auxin causes a growth increase on one side of the stem.
D)Auxin causes a decrease in growth on the side of the stem exposed to light.
E)Removing the apical meristem prevents phototropism.

Question

Quizplus · Accepted Answer

Auxin causes a growth increase on the side of the stem that is NOT exposed to light. This causes the stem to bend and grow toward the light source. Therefore, statement D is incorrect.

Plants Growing in a Partially Dark Environment Will Grow Toward