A tissue membrane is a thin layer or sheet of cells that either covers the outside of the body (e.g., skin), lines an internal body cavity (e.g., peritoneal cavity), lines a vessel (e.g., blood vessel), or lines a movable joint cavity (e.g., synovial joint). They transport water, salt and prepared food material to various parts of the plant body. Tissues are groups of similar cells that have a common function. Complex tissue is composed of more than one kind of cells. In Plants. Some that you'll need to know best include specialized blood cells, specialized nerve cells and specialized … Xylem Tissue. In this article, we explain their function, what they are made of, and the types of cells involved. I. EPITHELIUM Functions (jobs): 1) It protects us from the outside world – skin. While there are different hormones involved, all plants also develop from a single cell. Xylem and Phloem are complex permanent tissues and are found in the vascular bundles in the plants. They are two types, namely Xylem tissue and Phloem tissue. All these cells coordinate to perform a common function. The simplest living creatures are single cell creatures, but in complex life forms, such as human beings, cells also exist in the tissue level. Complex Tissues Tissues composed of more than one cell type are generically referred to as complex tissues. - Xylem - Phloem (bast) Xylem and Phloem are also called vascular tissue and together they constitute vascular bundles. The 4 Basic Tissue Types in the Human Body www.exploringnature.org Tissues are groups of cells with a common structure (form) and function (job). Complex Permanent Tissues: The complex tissue consists of more than one type of cell having a common origin. The different types of animal tissues include: Complex tissues are of two types. Each tissue type has a characteristic role in the body: There are at least 200 different cell types in the human body. Differentiation allows cells to develop into the four major tissue types: epithelial tissue, nervous tissue, connective tissue and muscle tissue. In order, from least complex to most complex: The animal cells are grouped together to form animal tissues. Xylem is a multifaceted tissue forming a part of the vascular bundle. Complex tissues are made up of more than one type of cells and they work together as a unit. Complex Permanent Tissue. Cells, tissues, organs and systems. Xylem and phloem are the two most important complex tissues in a plant, as their primary functions include the transport of water, ions and soluble food substances throughout the plant. Unlike simple permanent cells which look the same and are made up of one type of cells, complex permanent tissues are made up of more than one type of cells. While the plant lifecycle sometimes seems alien and complex, the process of cell differentiation is very similar. Tissue Membranes. Let us have a glimpse of each type of animal tissue in detail. The complex tissues are generally heterogeneous in nature, being com­posed of dissimilar types of cell elements. Types of Animal Tissue. The four basic tissue types are epithelial, muscle, connective, and nervous tissue. Through cell differentiation, tissues as different as brain tissue and muscle are formed from the same single cell. Vascular tissue is an example of a complex tissue, and is made of two specialized conducting tissues: xylem and phloem. Complex tissues are of two types: Xylem or wood and phloem or bast. Multicellular organisms are organised into increasingly complex parts. There are four main tissues in the body – epithelium, muscle, connective tissue and nervous tissue. These tissues vary in their structure, function, and origin.The animal tissues are divided into epithelial, connective, muscular and nervous tissues. 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