Pruning stimulates meristematic growth and branching. Grafting joins conducting tissues for nutrient transport. Irrigation maintains healthy tissues through water supply. Crop rotation improves soil nutrients, supporting growth, conducting and supporting tissues, while reducing disease and improving plant health.
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Vibha’s statement is incomplete because meristematic tissues are also present as lateral and intercalary meristems. Neha can ask, “How do grasses regrow after cutting or stems increase in girth if meristems exist only at root and shoot tips?”
(i) The plant cell will have a larger vacuole because vacuoles store cell sap and maintain turgidity. (ii) The answer assumes both cells are mature, normal and healthy cells performing their usual biological functions under similar conditions.
A thick cuticle reduces water loss through transpiration, helping desert plants conserve water. Underwater plants do not face water shortage, so a thick cuticle would hinder gaseous exchange and absorption, making survival and normal functioning difficult.
Simple squamous epithelial tissue in the lungs allows oxygen to enter the blood. Its thin, flat cells provide a short diffusion pathway, enabling rapid exchange of oxygen and carbon dioxide between air sacs and blood vessels efficiently.