Tissues — Flashcards

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A tissue is a group of cells that are similar in structure and work together to perform a specific function. Examples include blood, muscle, and phloem. In multicellular organisms, tissues allow for d…

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Plants are stationary and need to remain upright against gravity and wind. They have large amounts of supportive tissue (like sclerenchyma) with dead cells that provide strength. Animals move around a…

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Root growth stops or slows significantly because the apical meristem (growing tissue) is located at the root tips. This meristematic tissue is responsible for producing new cells that increase root le…

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Meristematic cells are actively dividing and need to remain small and flexible. Large vacuoles would make cells rigid and bulky, preventing easy division. These cells have dense cytoplasm and thin wal…

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In aquatic plants, parenchyma contains large air-filled spaces called aerenchyma. These air cavities provide buoyancy, helping the plant float on water surface. This adaptation ensures the plant gets …

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Coconut husk is made of sclerenchyma tissue. This tissue has dead cells with thick walls strengthened by lignin. The walls are so thick that there's no internal space, making it extremely hard and pro…

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Transpiration is the loss of water vapor through stomata. It helps in: 1) Cooling the plant, 2) Creating suction for water absorption from roots, 3) Transporting minerals upward, 4) Maintaining plant …

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Desert plants have thick cutin (waxy coating) to prevent water loss in hot, dry conditions. This waterproof layer reduces transpiration, helping the plant conserve precious water in arid environments.