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STD 11 - 6. Anatomy flowering plants — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 6. Anatomy flowering plants1 Mark
MCQ
Dermatogen, periblem and plerome are
  • A
    Permanent tissues
  • ✓
    Meristematic tissues
  • C
    Intercalary tissues
  • D
    Secondary tissues
✓

Answer

Correct option: B.
Meristematic tissues
b
(b) According to histogen theory of Hanstein ($1870$), the shoot apex is differentiated in to three distinct meristematic zones or layers

(a) Dermatogen (forms epidermis)

(b) Periblem (forms cortex and endodermis) and

(c) Plerome (forms pericycle) vascular bundles, medullary rays and pith.

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