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Consider the following statement: (a) ...

Consider the following statement:
(a) Complimentary cells are thin walled, rounded, colourless parenchymatous and non-suberized
(b) secondary phloem and periderm are included in bark.
(c) In a dicot root, vascular combium is completely secondary in origin
(d) In a dicot root, vascular cambium is initially wavy which later becomes circular. How many of above statemetns are correct?

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The correct Answer is:
To determine how many of the given statements are correct, we will analyze each statement one by one. ### Step-by-Step Solution: 1. **Statement (a)**: "Complimentary cells are thin-walled, rounded, colourless parenchymatous and non-suberized." - **Analysis**: Complimentary cells are indeed thin-walled, rounded, and colorless parenchyma cells. They are also non-suberized, meaning they do not have a suberin layer. This statement is **correct**. 2. **Statement (b)**: "Secondary phloem and periderm are included in bark." - **Analysis**: Bark is defined as all tissues outside the vascular cambium, which includes the secondary phloem and the periderm (cork). Therefore, this statement is also **correct**. 3. **Statement (c)**: "In a dicot root, vascular cambium is completely secondary in origin." - **Analysis**: In dicot roots, the vascular cambium does indeed arise from the procambium, which is part of the primary growth. However, it is considered secondary in terms of its function and contribution to secondary growth. Thus, this statement is **correct**. 4. **Statement (d)**: "In a dicot root, vascular cambium is initially wavy which later becomes circular." - **Analysis**: The vascular cambium in dicot roots starts off as a wavy structure and later develops into a circular formation as it matures. This statement is also **correct**. ### Conclusion: All four statements (a, b, c, and d) are correct. ### Final Answer: **All four statements are correct.** ---
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