All roots have a cap of slimy cells at their tip. These cells protect the root and prevent it from being worn away as it grows through the ground.
Roots grow in length only from their ends.
The very tip of the root is covered by a protective, thimble-shaped root cap. Tungsten on the tips of roots prevents the tips from being worn away! What amazing drill bits!
מאד עמקו מחשבותיך