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Animal tissues can be grouped into four basic types: connective, muscle, nervous, and epithelial. Multiple tissue types comprise organs and body structures. While all animals can generally be considered to contain the four tissue types, the manifestation of these tissues can differ depending on the type of organism. For example, the origin of the cells comprising a particular tissue type may differ developmentally for different classifications of animals. The epithelium in all animals is derived from the ectoderm and endoderm with a small contribution from the mesoderm which forms the endothelium. By contrast, a true epithelial tissue is present only in a single layer of cells held together via occluding junctions called tight junctions, to create a selectively permeable barrier. This tissue covers all organismal surfaces that come in contact with the external environment such as the skin, the airways, and the digestive tract. It serves functions of protection, secretion, and absorption, and is separated from other tissues below by a basal lamina. Endothelium, which comprises the vasculature, is a specialized type of epithelium.
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What cells are dead have thick walls and support the plant walls?
Dead cells with thick walls that support plant walls are called sclerenchyma cells. These cells are highly specialized for mechanical support and are found in regions of the plant that require rigidity and strength, such as the stems and vascular tissues.
What fibers surround the xylem tissues?
Fibers made of long, narrow, sclerenchyma cells with thick secondary walls surround the xylem tissue. They provide strength and support to the xylem tissue.
Which of the following tissues plays an important role in supporting the plant stemEpidermis PhloemCambium None of the previous tissues?
None of the previous tissues.
Why sclerenchyma does not has intercellular spaces?
Sclerenchyma cells have thick, rigid cell walls made of lignin, which provides structural support to the plant. These thick walls don't leave room for intercellular spaces, resulting in a dense and compact arrangement of cells. This lack of intercellular spaces contributes to the strength and rigidity provided by sclerenchyma tissues.
Which type of plant cell dies at maturity and has strong thick cell walls that remain and provide support for the plant?
Sclerenchyma cells are the type of plant cell that dies at maturity. They have strong, thick cell walls made of lignin that remain as a supportive structure in the plant. These cells provide rigidity and support to plants, especially in areas like stems and vascular tissues.
Why do arteries have thick walls?
Arteries have thick walls to withstand the high pressure of blood flow from the heart to the rest of the body. The thick walls help maintain the shape and structure of the arteries, allowing them to efficiently transport oxygen and nutrients to tissues and organs.
What cells are dead have thick walls and support the plant walls?
Dead cells with thick walls that support plant walls are called sclerenchyma cells. These cells are highly specialized for mechanical support and are found in regions of the plant that require rigidity and strength, such as the stems and vascular tissues.
How thick are the walls of capillaries compared to those of arteries and veins?
Arteries and veins have much thicker walls compared to capillaries. The largest arteries and veins have walls up to 5 mm thick, while capillaries have walls that are only one cell layer thick.
What is the tiniest blood vessels with walls are only one cell thick are?
Capillaries are the tiniest blood vessels in the body with walls that are only one cell thick, allowing for the exchange of gases, nutrients, and waste products between the blood and tissues.
What is the difference between young and old dicot stem?
YOUNG DICOT STEM:-SUPPORTING TISSUES are1- Parenchyma tissues2-Schlrenchyma tissues3-Collenchyma tissues4- Turgidity of walls of tissuesWOODY DICOT STEM:-SUPPORTING TISSUES are1-Cork cambium2- Vascular cambium
Why must arteries be so thick walled and muscular?
Arteries withstand high pressure during systole (heart contracts), they need thick walls to prevent rupture. In fact larger amounts of elastic tissues than muscle tissues are found as it is constantly stretched and recoiled.
Blood vessels whose walls are only one celled thick?
Capillaries are blood vessels whose walls are only one cell thick. They are responsible for exchange of oxygen, nutrients, and waste products between the blood and the surrounding tissues. This thin structure allows for efficient diffusion of substances across the capillary walls.
How thick was the walls of the San Diego mission?
The walls were 5 feet thick!
How thick were the walls of the Palazzo Medici?
as thick as any other renaissance buildings walls
How thick are the walls of cape lookout?
it thick as a brick
How many layers thick is a capillary?
Capillaries are only one cell layer thick, which allows for the exchange of nutrients and gases between the blood and tissues. This thin structure promotes efficient diffusion and transport across the capillary walls.
What kind of blood vessel are the thinest?
Blood capillaries are the thinnest, their walls only a single layer thick in order to reduce the diffusion distance for substances between the blood and tissues.
