Question

    In plants, what is present in the middle lamella,

    primary cell wall, and secondary cell wall, and accumulates during the initial stages of cell expansion?
    A Chitin Correct Answer Incorrect Answer
    B Gelatin Correct Answer Incorrect Answer
    C Alginate Correct Answer Incorrect Answer
    D Pectin Correct Answer Incorrect Answer

    Solution

    Pectin is a complex carbohydrate found in the middle lamella, primary, and secondary cell walls of plants. It plays a critical role in cell wall integrity, particularly during the early stages of cell development and expansion. Pectin aids in maintaining cell wall strength and flexibility, facilitating proper growth. 

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