Statement-I : In racemose type of inflorescences the main axis continues to grow, the flowers are borne laterally in an acropetal succession.Statement-II : In cymose type of inflorescence the main axis terminates in a flower, hence is limited in growth. The flowers are borne in a basipetal order.
Question
Statement-I : In racemose type of inflorescences the main axis continues to grow, the flowers are borne laterally in an acropetal succession.Statement-II : In cymose type of inflorescence the main axis terminates in a flower, hence is limited in growth. The flowers are borne in a basipetal order.
Solution
Step 1: Understand the statements Statement-I: In racemose type of inflorescences, the main axis continues to grow, and the flowers are borne laterally in an acropetal succession. Statement-II: In cymose type of inflorescence, the main axis terminates in a flower, limiting its growth. The flowers are borne in a basipetal order.
Step 2: Analyze Statement-I According to Statement-I, racemose inflorescences have a main axis that continues to grow. This means that the main axis keeps elongating as new flowers are produced. Additionally, the flowers are borne laterally, which means they are positioned on the sides of the main axis. The acropetal succession indicates that the flowers are arranged in an order where the older flowers are closer to the base of the axis, and the younger flowers are closer to the top.
Step 3: Analyze Statement-II According to Statement-II, cymose inflorescences have a main axis that terminates in a flower. This means that the growth of the main axis is limited, as it ends with a flower. Unlike racemose inflorescences, the flowers in cymose inflorescences are borne in a basipetal order. This means that the older flowers are positioned closer to the top of the axis, and the younger flowers are closer to the base.
Step 4: Compare the statements The main difference between racemose and cymose inflorescences lies in the growth pattern of the main axis and the arrangement of flowers. In racemose inflorescences, the main axis continues to grow, and the flowers are borne laterally in an acropetal succession. In contrast, cymose inflorescences have a main axis that terminates in a flower, limiting its growth, and the flowers are borne in a basipetal order.
Step 5: Conclusion Based on the given statements, it can be concluded that racemose and cymose inflorescences differ in the growth pattern of the main axis and the arrangement of flowers. Racemose inflorescences have a continuously growing main axis with flowers borne laterally in an acropetal succession, while cymose inflorescences have a limited growth of the main axis that terminates in a flower, with flowers borne in a basipetal order.
Similar Questions
Statement-I : In racemose type of inflorescences the main axis continues to grow, the flowers are borne laterally in an acropetal succession.Statement-II : In cymose type of inflorescence the main axis terminates in a flower, hence is limited in growth. The flowers are borne in a basipetal order.AStatement-I is correct and statement-II is incorrectBStatement-I is incorrect and statement-II is correctCBoth statements are incorrectDBoth statement are correct
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