Organization of the stem apex into corpus and tunica is determined mainly by:
Correct answer: A. planes of cell division
- A. planes of cell division
- B. Regions of meristematic activity
- C. Rate of cell growth
- D. Root of shoot tip growth
Explanation
The tunica and corpus are distinguished by the direction of cell divisions. Tunica cells divide mainly anticlinally, while corpus cells divide in various planes, determining their organization.
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About Forms and Functions of Plants
Plant nutrition and transport cover mineral uptake, photosynthesis, xylem movement of water and minerals, and phloem translocation of sugars. Plant growth regulators include auxins, gibberellins, cytokinins, abscisic acid and ethene, whose effects on cell division, elongation, dormancy, fruit ripening and tropic responses should not be confused with mineral nutrition.
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