If a plant is grown in the absence of gravity, which type of phototropism will its roots exhibit, and where will auxin accumulate?(1 point)
A.negative phototropism; auxin will accumulate on the side nearest to the light source
negative phototropism; auxin will accumulate on the side nearest to the light source
B.positive phototropism; auxin will accumulate on the side away from the light source
positive phototropism; auxin will accumulate on the side away from the light source
C.negative phototropism; auxin will accumulate on the side away from the light source
negative phototropism; auxin will accumulate on the side away from the light source
D.positive phototropism; auxin will accumulate on the side nearest to the light source
positive phototropism; auxin will accumulate on the side nearest to the light source
Phototropism refers to the growth or movement of an organism (often a plant) in response to light stimulus. Negative phototropism occurs when an organsim grows away from specific chemicals.
If a plant is grown in the absence of gravity, its roots will exhibit negative phototropism and auxin hormones will accumulate on the side away from the light source (Option C is correct).
In this case, negative phototropism occurs in response to auxin hormones.
On the other hand, positive phototropism occurs when a plant grows towards the light source.
