Question

A magnified cross-sectional view of a horsetail stem shows the tube-shaped cells of xylem. What is their function?
1 reproductive system of alteration of generations
2 transport system that moves water
3 storage system for extra starch formed

Answer 1

2. Transport system that moves water

Answer 2

Xylem is the water conducting system to all the plant parts. Equisetum is characterised under Hydrophytes, Hence xylem is poorly developed and appears as tubes.

Answer 3

Vascular tissues allows for the transport of water, nutrients, food, which will all come between the ground and the body of the plant.

There are two types:
The first one is xylem; this will be when cells bring water and nutrients up from the roots and to the rest of the plant, which is from the soil--Dead at maturity and has thick cell walls. This is present in the plant parts, but is dominant to the stem, the roots, and the leaves.

The second one is phylum; this carries glucose made during photosynthesis (this is predominately in the leaves) to the rest of the plant cells--Alive at maturity and they may lack some standard cells organelles, in order for them to aid in their transport function.

Hope that helps! n_n

Answer 4

This question was taken from http://answers.yahoo.com/question/index?qid=20120330114934AACqxkJ. And the answer provided was 2, Transport tissue found in vascular plants, whose main function is to conduct water and dissolved mineral nutrients from the roots to other parts of the plant.
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