QQuestionAnatomy and Physiology
QuestionAnatomy and Physiology
How do plants stay upright?
A. Cells on the surface layer of plants develop starch walls on the outside that all connect to form a rigid outer "armor layer" that supports the plant. In trees, this layer develops into bark.
B. They have tough protein fibers in their cells that form supportive structures running throughout the plant.
C. They have small calcium rods in them, kind of like animal bones.
D. Each of their cells has a rigid cell wall and a central vacuole that fills with water to make the cell firm. All the firm cells help support the plant.
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Answer
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Step 2: Analyze the Cell Structure of Plants
Plants stay upright primarily through their cell wall structure. The key mechanism is the rigid cell wall that provides structural support.
Final Answer
Each of their cells has a rigid cell wall and a central vacuole that fills with water to make the cell firm. All the firm cells help support the plant. Key Insights: - Plant cell walls are made of cellulose - Turgor pressure from the central vacuole provides rigidity - The collective structure of these cells allows plants to stay upright
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