Question

what is primary phloem and secondary phloem​

Answer 1

Answer:

Primary phloem is laid down by the apical meristem and develops from the procambium. Secondary phloem is laid down by the vascular cambium to the inside of the established layer of phloem.

The secondary phloem is a type of phloem that forms from the vascular cambium during the secondary growth. The secondary growth is responsible for the growth in girth in plants, especially trees. The vascular cambium is the meristematic tissue involved in this type of growth.

Answer 2

Explanation:

#primary phloem

• On the basis of development, primary phloem is classified into two parts, which are called protofloem and metafloem. The protofloam has a narrow sieve tube while the metafloam has a large sieve tube.

#secondary phloem

• Secondary phloem fibers such as jute fibers are of economic value. Phloem Parenchyma stores resins, latex and mucilage, etc. Phloem Parenchyma conducts food convection.

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