C. SLIDE: Ranunculus mature root xs (Text p. 566) 1. Draw and label: epidermis, cortex, vascular cylinder, xylem, phloem cortex, 2. Label where the endodermis and pericycle are. What does the pericycle do? to protect and maintain structure of plant 3. Describe your root with respect to xylem ridges. (e.g. -__________arch)

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Chapter1: The Human Body: An Orientation
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### Slide: Ranunculus Mature Root Cross-Section (Text p. 566)

**1. Draw and label: epidermis, cortex, vascular cylinder, xylem, phloem.**

A hand-drawn cross-section of a root is depicted with the following parts labeled:
- **Cortex:** The outer layer of the root structure within the epidermis.
- **Epidermis:** The outermost layer of cells.
- **Endodermis:** A layer just inside the cortex.
- **Pericycle:** Tissues inside the endodermis, pivotal for lateral root growth.
- **Xylem:** Located centrally, responsible for transporting water.
- **Phloem:** Situated around the xylem, involved in transporting nutrients.
- **Vascular Cylinder:** Encompasses both xylem and phloem.

**2. Label where the endodermis and pericycle are. What does the pericycle do?**

- The endodermis and pericycle are labeled in the diagram.
- **Pericycle Function:** Involved in protecting and maintaining the structure of the plant.

**3. Describe your root with respect to xylem ridges: (e.g., -arch).**

- *Response needed:* Describe the number and arrangement of xylem ridges.

**4. How might the root cross-sections of a monocot differ from Ranunculus?**

- *Response needed:* Discuss the differences in structural organization between monocot roots and those of Ranunculus.
Transcribed Image Text:### Slide: Ranunculus Mature Root Cross-Section (Text p. 566) **1. Draw and label: epidermis, cortex, vascular cylinder, xylem, phloem.** A hand-drawn cross-section of a root is depicted with the following parts labeled: - **Cortex:** The outer layer of the root structure within the epidermis. - **Epidermis:** The outermost layer of cells. - **Endodermis:** A layer just inside the cortex. - **Pericycle:** Tissues inside the endodermis, pivotal for lateral root growth. - **Xylem:** Located centrally, responsible for transporting water. - **Phloem:** Situated around the xylem, involved in transporting nutrients. - **Vascular Cylinder:** Encompasses both xylem and phloem. **2. Label where the endodermis and pericycle are. What does the pericycle do?** - The endodermis and pericycle are labeled in the diagram. - **Pericycle Function:** Involved in protecting and maintaining the structure of the plant. **3. Describe your root with respect to xylem ridges: (e.g., -arch).** - *Response needed:* Describe the number and arrangement of xylem ridges. **4. How might the root cross-sections of a monocot differ from Ranunculus?** - *Response needed:* Discuss the differences in structural organization between monocot roots and those of Ranunculus.
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