The Central part of tree is called
- AHeart Wood
- BPithCorrect
- CSap Wood
- DCambium Layer
Solution
Concept
Identification of central part of tree trunk
Formula
NONE
Step-by-step solution
1. A cross-section of a tree trunk reveals concentric annual rings surrounding an innermost core. 2. The innermost or central core part of the tree stem is known as the pith or medulla. 3. Pith provides nourishment during young stages of plant growth and becomes dark and inactive as the tree ages. Answer: B
Explanation
The pith, or medulla, is the soft cellular core located at the exact center of a tree stem. It acts as the primary channel for distributing nutrients during the young stage of the tree. As the tree grows, heartwood forms around it, keeping the pith in the central core.
Why the other options are wrong
A) Heartwood is the inner durable region surrounding the pith. C) Sapwood is the outer living layer between heartwood and cambium layer. D) Cambium layer is the thin tissue between sapwood and inner bark.
Shortcut
Innermost central core of a tree = Pith.
Common mistake
Confusing the pith, which is the innermost central core, with heartwood, which surrounds the pith.
Correct answer: B) Pith