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In a flowering plant the substance that ...

In a flowering plant the substance that is not transported is

A

water and mineral nutrients

B

organic nutrients

C

plant growth regulators

D

oxygen In a flowering plant

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To solve the question, "In a flowering plant, the substance that is not transported is," we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Question**: We need to identify which substance is not transported within a flowering plant. 2. **Evaluate the Options**: - **Option 1: Water and Minerals**: Water is transported through the xylem from roots to stems (unidirectional), and minerals are transported in a multidirectional manner. Thus, both are transported. - **Option 2: Organic Nutrients**: Organic nutrients are transported through the phloem in a multidirectional manner. Therefore, this option is also transported. - **Option 3: Plant Hormones**: Plant hormones (growth regulators) are indeed transported, albeit in small quantities. Hence, this option is also transported. - **Option 4: Oxygen**: Oxygen is primarily taken up by leaves from the environment for respiration and is produced during photosynthesis. It is not transported within the plant in the same way as the other substances. 3. **Conclusion**: Based on the evaluation of the options, the substance that is not transported in a flowering plant is **Oxygen** (Option 4). ### Final Answer: The substance that is not transported in a flowering plant is **Oxygen**. ---
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How many of the following statements are not correct? [I] In a flowering plant the substances that would need to be transported are water, mineral nutrients, organic nutrients and plant growth regulators. [II] Over small distances, substances move by diffusion and by cytoplasmic streaming supplemented only by passive transport. [III] Organic and mineral nutrients undergo multidirectional transport through the xylem. [IV] From the storage organs, organic compounds are later re-exported. [V] Phytohormones and other chemical signals are transported to maintain and regulate the plant functions.

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