Figure 39.2

-Suppose you laid a seedling on its side so that the root was parallel to the ground.Several hours after the change in position,where in the root cells (position A,B,or C in Figure 39.2)would you find the amyloplasts?

Question

Figure 39.2
 
-Suppose you laid a seedling on its side so that the root was parallel to the ground.Several hours after the change in position,where in the root cells (position A,B,or C in Figure 39.2)would you find the amyloplasts?

Quizplus · Accepted Answer

Amyloplasts are plastids that contain starch and are responsible for gravity perception in plant roots. They sediment towards the gravity vector, which in this case would be downwards. Therefore, after the change in position, the amyloplasts would be found in the lowermost cells, which corresponds to position A in Figure 39.2 where the root tip is located.

Figure 39.2 -Suppose You Laid a Seedling on Its Side So That