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Question
Two students, Renu and Rohit, were having a discussion on the plastids. Renu emphasised that all parts of the plants, even roots, contain plastids. However, Rohit did not agree with the statement and told her that plastids are absent in plant roots since the roots are underground and do not need to perform photosynthesis. Who is correct? Justify your answer.
![Question 5 — Two students, Renu - Cell — The Building Bl - [Teachoo] - Questions at the end of the chapter](https://cdn.teachoo.com/abaf2ea3-ef29-4cf2-a252-14c3a0e5318a/image-a-plant-with-green-leaves-above-ground-and-white-roots-below-the-soil-showing-green-chloroplasts-in-the-leaves-and-colourless-leucop.webp)
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Answer
Renu is correct.
Explanation
- Plastids are present in all parts of a plant, even roots.
- Roots do not do photosynthesis, so they lack green chloroplasts.
- But roots have colourless plastids called leucoplasts.
- Leucoplasts store food like starch (for example, in potato).
Roots have leucoplasts, so they do contain plastids.
