Roots are non-green coloured. Is there is any green coloured root ? Explain.
Name any three plastids.
Name the types of plastids.
There are _________ types of plastids.
Following observations are made for a plant grown under different conditions I. Chloride and magnesium in soil +"light"to"green plant" II. Chloride and magnesium in soil+light to etiolated plant III. Magnesium +light to green plant VI. Intermittent light flashes +chloride to etiolated plant From the above observations, it is concluded that the factors necessary for the green colour in plants are