Question Video: Using Knowledge of Bryophyta and Tracheophyta to Classify a Given Organism Biology

A flower with a long stem that contains a specialized system for transporting water and sugars has been found. What phylum, Bryophyta or Tracheophyta, is this plant most likely to belong to?

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Video Transcript

A flower with a long stem that contains a specialized system for transporting water and sugars has been found. What phylum, Bryophyta or Tracheophyta, is this plant most likely to belong to?

Plants belong to kingdom Plantae, a group of organisms consisting of around 400,000 different species. Kingdom Plantae can be subdivided into two main groups: vascular plants and nonvascular plants.

Nonvascular plants are sometimes categorized as a phylum, or subdivision, called Bryophyta. This division of kingdom Plantae includes organisms like mosses. The bryophytes that belong to this group do not have complex or specialized vascular tissues for transporting materials around the plant’s body.

Vascular plants are sometimes categorized as a phylum, or subdivision, called Tracheophyta. This division of kingdom Plantae includes organisms like flowering plants, which are otherwise known as angiosperms. These plants do have specialized vascular tissues, which are cells joined together into a network of tubes called the xylem and the phloem. The xylem is used to transport water and mineral ions from the roots, sometimes along a long stem, to the rest of the plant. The phloem transports other nutrients, like sugars, mainly from the leaves, where most of them are produced, both up and down the plant stem to all the plant cells that might require them. This provides us with the information we need to answer this question.

As the plant described in the question has a flower, a long stem, and specialized systems for transporting water and sugars, it most likely belongs to the phylum Tracheophyta.

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