Where in a plant would you look to find active cell division _____________________?
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Answer: D. Tips of stem & roots
Explanation
Active cell division through mitosis occurs primarily within meristematic tissues located at the tips of stems and roots. Apical meristems contain undifferentiated cells that divide continuously to drive primary plant growth in length. These specialized terminal regions sustain the ongoing elongation and structural development of the plant body. Meristems are localized regions of active cell division consisting of small unspecialized plant cells. Root apical meristems and shoot apical meristems produce new cells that subsequently elongate and differentiate. Mitotic divisions in meristems require high metabolic energy and active protein synthesis to duplicate genetic material.
Horticulturists and agronomists target stem and root tips when studying plant tissue culture and micropropagation. Damage to apical meristems can stunt vertical plant growth and alter branching architecture significantly. Understanding meristematic activity helps researchers improve crop yields and stress tolerance in agriculture. Pith cells consist of mature parenchyma tissue specialized for storage rather than active mitotic cell division. Cortex cells provide structural support and storage functions rather than serving as primary sites for division. Internode regions undergo cell elongation rather than continuous primary cell division characteristic of apical tips.
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- Agriculture
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- Agriculture
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- Difficulty
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