DUMET Medical DUMET Medical Solved Paper-2001

  • question_answer
    The chloroplast of algae usually lack :

    A)  grana      

    B)  pigments

    C)  lamellae      

    D)  quantasome

    Correct Answer: A

    Solution :

    The thylakoids in algal plastids are only of one kind and restricted to the stack itself. They are not closely packed or fused as in the granum of higher plants. Quantasome was isolated by Park and Biggins. According to them, quantasome is a separable piece of thylakoid membrane having a size of \[20\times 10\] nm and 280 pigment molecules. In chloroplast, there are two types of pigments. [a] chlorophyll [b] carotenoids.


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