Phloem is responsible for transporting sugars, proteins, and other organic molecules in plants. Vascular plants are able to grow higher than other plants due to the rigidity of xylem cells, which support the plant.

The xylem and the phloem make up the vascular tissue of a plant and transports water, sugars, and other important substances around a plant. Phloem is responsible for transporting food produced from photosynthesis from leaves to non-photosynthesizing parts of a plant such as roots and stems.

Phloem transports carbohydrates, produced by photosynthesis and hydrolysis of reserve compounds, to sink tissues for growth, respiration and storage. At photosynthetic tissues, carbohydrates are loaded into phloem (Rennie and Turgeon 2009), a process that raises the solute concentration.

The vascular tissue of the stem consists of the complex tissues xylem and phloem which carry water and nutrients up and down the length of the stem and are arranged in distinct strands called vascular bundles.

Secondary growth is the growth in thickness due to the formation of secondary tissues by lateral meristems. Secondary growth does not occur in monocots because monocots do not possess vascular cambium in between the vascular bundles.

Dicots have a tap root system, while monocots have a fibrous root system. A tap root system has a main root that grows down vertically, and from which many smaller lateral roots arise.

There are the difference between monocot stem and dicot stem, as well. In the case of monocot stems, they come with scattered vascular bundles….The Most Common Differences.

Monocots usually do not have a midrib and the blade is more uniform in its thickness. Because the large veins in monocot leaves lie parallel to one another, they are cut at a 90 degree angle in a cross section. Consequently, they produce a highly organized profile.

Monocot leaves tend to have parallel veins; in dicots the veins are netted. The vascular bundles in monocots stems are scattered; in dicots they form a ring surrounding the pith. Monocot root systems are adventitious; with dicots both primary and adventitious root systems occur.

The names or these groups are derived from the number of cotyledons or seed leaves that the embryonic seedling has within its seed. A monocot, which an abbreviation for monocotyledon, will have only one cotyledon and a dicot, or dicotyledon, will have two cotyledons. monocots have narrow grass-like leaves.

Monocot stems do not produce wood, so they do not thicken by adding concentric, growth rings of cells, as do woody dicots do. Monocot stems thicken through scattered vascular bundles, which are tube-like networks of cells conducting water and nutrients throughout the plant.

Monocots, or monocotyledons, are a class of the flowering plants, or angiosperms. Monocots are named for and recognized by the single cotyledon , or seed leaf, within the seed.

They constitute one of the major groups into which the flowering plants have traditionally been divided, the rest of the flowering plants having two cotyledons and therefore classified as dicotyledons, or dicots. The APG III system of 2009 recognises a clade called “monocots” but does not assign it to a taxonomic rank.

Anatomy Of Monocot Stems They cannot increase in girth by adding lateral layers of cells as in conifers and woody dicots. Instead, they have scattered vascular bundles composed of xylem and phloem tissue. Each bundle is surrounded by a ring of cells called a bundle sheath.

Ancestral monocots lost their secondary growth and their stele has changed in a way it could not be recovered without major changes that are very unlikely to occur. Some monocot stems increase in diameter due to the activity of a primary thickening meristem, which is derived from the apical meristem.

The reason that trees produce wood is not to support our factories; woody stems evolved to support leaf canopies in the sunlight above their competition. Woody plants are hard with a thick, wood-like covering on their stems or trunk. The are generally long lived.

Monocotyledons are mostly devoid of cambium. They don’t show secondary growth. Secondary growth is the growth in the thickness of stem and roots, which takes place due to the activity of cambium.

LAND–WATER INTERFACES: LARGER PLANTS The emergent monocotyledons, such as Phragmites and the cattail Typha, produce erect, approximately linear leaves from an extensive anchoring system of rhizomes and roots.

The majority of the monocot stem is composed of ground tissue, which primarily consists of parenchyma cells. Sclerenchyma cells are also found in regions that require extra strength. Monocot stems have vascular bundles, composed of xylem and phloem, that are scattered throughout the ground tissue.

In monocots the endodermis is present around each vascular bundle.