AP BIOLOGY

Detailed explanation-1: -The cork cambium produces some of the bark. In dicot stems, the vascular cambium initially differentiates from procambial cells within the vascular bundles (Fig. 1.8A). This fascicular cambium may contribute additional cells to both the xylem and the phloem of the bundle.

Detailed explanation-2: -Structure and function. The cambium present between primary xylem and primary phloem is called the intrafascicular cambium (within vascular bundles).

Detailed explanation-3: -The correct option is C Fascicular cambium. The cambium present between the xylem and phloem of the vascular bundle is called vascular cambium or fascicular cambium. It is a lateral meristem that gives rise to secondary xylem and phloem and occurs in the form of a thin strip.

Detailed explanation-4: -A closed vascular bundle signifies that cambium is absent. A closed vascular bundle does not possess the tendency to produce the phloem tissues and secondary xylem.

Detailed explanation-5: -A cambium (plural cambia or cambiums), in plants, is a tissue layer that provides partially undifferentiated cells for plant growth. It is found in the area between xylem and phloem.