Table of Contents
What is the importance of phloem in plants?
Plants have tissues to transport water, nutrients and minerals. Xylem transports water and mineral salts from the roots up to other parts of the plant, while phloem transports sucrose and amino acids between the leaves and other parts of the plant.
Why is it important to the plant that phloem move up and down?
First of all, phloem can move both up and down a plant, which comes in handy when a plant needs energy down below to grow new roots, or when a tasty apple is developing on a high branch. To get the food made in the leaves to other parts of the growing plant requires energy.
Which is important xylem or phloem?
Xylem tissue is used mostly for transporting water from roots to stems and leaves but also transports other dissolved compounds. Phloem is responsible for transporting food produced from photosynthesis from leaves to non-photosynthesizing parts of a plant such as roots and stems.
How does phloem adapted to its function?
The cells that make up the phloem are adapted to their function: Each sieve tube has a perforated end so its cytoplasm connects one cell to the next. Companion cells – transport of substances in the phloem requires energy. One or more companion cells attached to each sieve tube provide this energy.
How are xylem and phloem adapted to their function?
The xylem is a tissue which transports water and minerals from the roots up the plant stem and into the leaves. The cells that make up the xylem are adapted to their function: They lose their end walls so the xylem forms a continuous, hollow tube. They become strengthened by a substance called lignin .
Why is phloem in a leaf important to the roots of a plant?
The phloem carries food downward from the leaves to the roots. Xylem cells constitute the major part of a mature woody stem or root. They are stacked end to end in the center of the plant, forming a vertical column that conducts water and minerals absorbed by the roots upward through the stem to the leaves.
How does the phloem help photosynthesis?
The phloem moves food substances that the plant has produced by photosynthesis to where they are needed for processes such as: storage organs such as bulbs and tubers.
What is the role of phloem in a vascular plant?
Phloem is the vascular plant tissue responsible for the transport and distribution of sugars produced by the photosynthesis.