number of cambial strips in a vascular bundle of cucurbita stem is

Options

A. 1
B. 3
C. 2
D. 4

Answer

To determine the number of cambial strips in a vascular bundle of Cucurbita stem, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Vascular Bundle Types**:
- Vascular bundles can be classified into different types: collateral, bicollateral, and others. In the case of Cucurbita, we are specifically looking at the bicollateral type.

2. **Identify the Characteristics of the Bicollateral Vascular Bundle**:
- In a bicollateral vascular bundle, both xylem and phloem are present. The arrangement consists of two phloem regions (outer and inner) surrounding a central xylem region.

3. **Recognize the Presence of Cambium**:
- Cambium is a type of meristematic tissue responsible for secondary growth. In the bicollateral vascular bundle, there are two cambial strips: one located between the outer phloem and xylem, and the other between the inner phloem and xylem.

4. **Count the Cambial Strips**:
- Since there are two distinct cambial strips present in the bicollateral vascular bundle of Cucurbita, we conclude that the number of cambial strips is two.

5. **Select the Correct Option**:
- Based on the analysis, the correct answer to the question is that there are **two cambial strips** in the vascular bundle of Cucurbita stem.

### Final Answer:
The number of cambial strips in a vascular bundle of Cucurbita stem is **2**.

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