what are the two important functions of stems?
199436
The primary functions of the stem are to support the leaves; to conduct water and minerals to the leaves, where they can be converted into usable products by photosynthesis; and to transport these products from the leaves to other parts of the plant, including the roots.
1405953
Although its primary function is transport of sugars, phloem may also contain cells that have a mechanical support function. These generally fall into two categories: fibres and sclereids. Both cell types have a secondary cell wall and are therefore dead at maturity.
261822
Xylem is one of the two types of transport tissue in vascular plants, phloem being the other. The basic function of xylem is to transport water from roots to stems and leaves, but it also transports nutrients.
609848
Main function – upwards water transport. The xylem, vessels and tracheids of the roots, stems and leaves are interconnected to form a continuous system of water-conducting channels reaching all parts of the plants. The system transports water and soluble mineral nutrients from the roots throughout the plant.
467418
['They lose their end walls so the xylem forms a continuous, hollow tube.', 'They become strengthened by a substance called lignin . Lignin gives strength and support to the plant. We call lignified cells wood.']
107640
The part of the plant which is present above the surface of the soil is called Stems, while Roots is the part of the plant which is present below the soil surface. Secondly stems arises from the plumule and roots from the radical of the embryo. Most importantly stems possess leaves, but roots do not.
273864
['Roots.', 'Stem.', 'Leaves.', 'Flowers.', 'Fruits.']
133937
['Roots keep a plant in the ground. ... ', 'Leaves absorb sunlight, and make food for the plant by photosynthesis.']
650958
Plant organs include their roots, stems, leaves, and reproductive structures. Each plant organ performs a specialized task in the life of the plant. Roots, leaves, and stems are all vegetative structures. Flowers, seeds, and fruits make up reproductive structures.
889424
['A hormone is any chemical produced in one part of the body that has a target elsewhere in the body. ... ', 'Auxin also plays a role in maintaining apical dominance. ... ', 'Gibberellins promote stem elongation. ... ', 'Cytokinins promote cell division. ... ', 'Abscisic Acid promotes seed dormancy by inhibiting cell growth.']
240729
The various functions of water in plants include: maintaining cell turgidity for structure and growth; transporting nutrients and organic compounds throughout the plant; comprising much of the living protoplasm in the cells; serving as a raw material for various chemical processes, including photosynthesis; and, ...
735891
Stem Cells in Plants. Stem cells function as a source of new cells to grow or replace specialised tissues. ... By creating genetic differences between cells of the same plant, scientists are able to track how the descendants of a single marked cell make up organs and tissues as the plant grows.
79870
They are pores surrounded by specialized parenchymatic cells, called guard cells. Stomata have two main functions, namely they allow for gas exchange acting as an entryway for carbon dioxide (CO2) and releasing the Oxygen (O2) that we breath. The other main function is regulating water movement through transpiration.
136473
The xylem and phloem carry water and nutrients up and down the length of the stem and are arranged in distinct strands called vascular bundles. The epidermis is a single layer of cells that makes up the dermal tissue covering the stem and protecting the underlying tissue.
361217
What function do tire valve stem caps serve? That plastic screw-on cap on the tip of that knob protruding from the tire is a valve stem cap. It keeps dirt, moisture, and small debris from entering into the tire. It protects the Schrader valve, which is what keeps the air or nitrogen in your tires.
1396407
Xylem and phloem are the two types of vascular tissues, present in plants and together constitute vascular bundles. Their function is to efficiently transport the materials which can be food, water, nutrients, organic materials, etc. between the stems, roots, and leaves of plants.
229542
Shoot refers to new plant growth, whether it is a stem, a leaf, or even a flower. Stems are usually above ground, but there are some plants that have stems underground, such as bulbs or tubers. Stems usually have branches and leaves. Stems are generally round like a stick and may be herbaceous or woody.