NEET · BiologyHard
In the context of secondary growth in woody plants, the term 'bark' refers to which of the following combinations of tissues?
- A.Secondary phloem and periderm
- B.Secondary xylem and secondary phloem
- C.Phellogen, phellem, and phelloderm only
- D.Primary phloem and secondary phloem
Show correct answer & step-by-step solution
Correct answer: A — Secondary phloem and periderm
Solution
- Bark is defined as all tissues external to the vascular cambium.
- This includes the secondary phloem produced by the vascular cambium.
- It also includes the periderm, which consists of phellem, phellogen, and phelloderm.
- Therefore, bark comprises both secondary phloem and periderm.
- Hence the answer is (A).
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