The effect on functions of a cell if the plant cell wall or animal extracellular matrix were impermeable. Concept introduction: Plant cell wall is situated outside the cell membrane. It differentiates the animal cell from the plant cell. Plant cell wall is composed of cellulose but the exact chemical composition varies from species to species. Cells in plant and animal are organized into tissues. Neighboring cells are connected with plasmodesmata in plant and gap junctions in animal. Animal cells have extracellular matrix that include collagen, fibronectin, and proteoglycans. It forms a network of molecular fibers. It forms cytoplasmic channels which is continuous with cytoplasm of the neighboring cells. It allows the passage of ions, amino acids, sugar molecules and various molecules. It is helpful in maintaining cell to cell environment and work together in harmony.

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Chapter 6.7, Problem 2CC

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To explain: The effect on functions of a cell if the plant cell wall or animal extracellular matrix were impermeable.

Concept introduction: Plant cell wall is situated outside the cell membrane. It differentiates the animal cell from the plant cell. Plant cell wall is composed of cellulose but the exact chemical composition varies from species to species. Cells in plant and animal are organized into tissues. Neighboring cells are connected with plasmodesmata in plant and gap junctions in animal. Animal cells have extracellular matrix that include collagen, fibronectin, and proteoglycans. It forms a network of molecular fibers. It forms cytoplasmic channels which is continuous with cytoplasm of the neighboring cells. It allows the passage of ions, amino acids, sugar molecules and various molecules. It is helpful in maintaining cell to cell environment and work together in harmony.

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