Plant meristems can be found

Question

BlackTom AI · Accepted Answer

Question focus: Plant meristems and their distribution within plants.
Option 1: 'Only in certain locations within the plant to facilitate growth' — This is the accurate description. Meristems are not scattered as mature, differentiated cells; they are localized in specific regions that drive growth, such as apical meristems at the tips of roots and shoots, lateral meristems for girth, and sometimes intercalary meristems in grasses. Their strategic locations enable new tissues to form where growth is needed.
Option 2: 'In every plant cell' — This is incorrect. Most plant cells are differentiated and no longer actively dividing. Meristematic activity is restricted to particular zones, not universal across all cells.
Option 3: 'Only in perennial plants that continue growing year after year' — This is false. Meristems are present in many annuals as well (they may form and persist during the life cycle to permit growth and organ formation), not limited to perennials.
Option 4: 'Only in the earliest developmental stages of plants. Mature plants do not have meristems.' — This is inaccurate. Meristems persist in mature plants (e.g., shoot and root apical meristems remain active to sustain continued growth and tissue formation throughout life).

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