Does a tree grow from the outside or the inside?

Question

Just wondered, on a tree, does it grow on the outside (making the outside of the tree the newest) or from the middle of the trunk (making the middle newest).

It's just the outside looks the oldest but that would mean that it would continuously be being stretched.

Thanks!

Answer 1

????

Answer 2

Trees grow kinda from the outside - the layer of tissue that creates new growth (the cambium) is close to the outside of the trunk - this is where all the water and nutrient vessels are too. The inner trunk is used to store waste products and dies - that's why sometimes you see trees with hollow trunks - generally fungi have caused the inside to rot, while the living outer layer remains intact. Bark does look old but infact it's renewed too so isn't actually v old (cork bark is stripped but grows back). Hope that clears it up a bit! xx

Answer 3

Everything thing grows from in to out. Well most things. For trees, it should be the same. Because the more rings in the trunk the older the tree. Maybe you can't really saying its growing from either side, its just enlarging. Mostly from the outside anyways.

Answer 4

cell growth occurs both to the inside and the outside of the vascular cambium. Inside cellular growth gives rise to the xylem or water and nutrient conducting vessels of the stem (builds the water column, strength of wood and curtails the inward movement of pathogenic spread), while cellular growth to the outside creates another water conducting system called the phloem, which conducts organic substances like sugars and hormones from the leaves to other parts of trees

Answer 5

Trees grow on the outside. The outer-most layer of the tree is the only one that is alive. The inside is dead xylem & phloem.

Answer 6

The cambium layer is just underneath the bark, and that's where trees grow from. So, they basically grow from the outside.

Answer 7

it grows from a seed a nut or something like that but then it grows from inside to outside and you can tell how old it is by the rings when it is cut down but if its cut down then it wont grow a tall but be a small stump ok

Answer 8

The living part of a tree is the layer immediately under the bark.

If you "girdle" the tree by removing that layer, the tree dies.

Answer 9

No, they purely improve interior. All wood presently exterior are planted there via armies of small gnomes and are from time to time dug up, put in pots, taken interior and replaced with comparable wood

Answer 10

It grows from the inside. That's where the rings on the wood come from (each year of growth)

Answer 11

outside right underneth the bark