Question

Identify the type of tissue in the following: skin, bark of tree, bone, lining of kidney tubule, vascular bundle.

Answer 1

Hint: Tissue is a cellular organizational level in biology that exists between cells and a complete organ. A tissue is a collection of related cells and their extracellular matrix from the same origin that works together to perform a specific function. The functional grouping of multiple tissues results in the formation of organs.

Complete answer:
Tissues are collections of cells with a similar structure that work together to perform a specific function. Tissue is derived from an old French verb that means "to weave." Animal tissues are classified into four types: connective, muscle, nervous, and epithelial. Tissues in plants are classified into three types: vascular, ground, and epidermal. Organs in the body are made up of groups of tissues, such as the brain and heart.

Tissues present in skin: The epidermis, or the outermost layer of skin, serves as a waterproof barrier and is responsible for skin tone. The dermis is the layer of skin beneath the epidermis that contains tough connective tissue, hair follicles, and sweat glands. The hypodermis (deeper subcutaneous tissue) is made up of fat and connective tissue.

Tissues present in the bark of the tree: The vascular cambium produces the inner soft bark or bast; it is made up of secondary phloem tissue, the innermost layer of which transports food from the leaves to the rest of the plant. The cork cambium produces the outer bark, which is mostly dead tissue (phellogen).

Tissues present in bone: connective tissue is present in bone. Connective tissue supports bind together and protects the body's tissues and organs.

Tissues present inlining of kidney tubule: The cuboidal epithelium that lines the kidney tubules. It is made up of a single layer of cube-like (cuboidal) cells with large, spherical nuclei in the middle. The cells in the kidney tubules aid in the absorption and transportation of filtered substances.

Thus, Squamous epithelial tissue, Epidermal tissue/cork, Connective tissue, Cuboidal epithelial tissue, Complex permanent tissue (Xylem or phloem) are present in the skin, the bark of a tree, bone, lining of kidney tubule, vascular bundle respectively.

Tissues present in Vascular bundle: Vascular tissue is made up of the plant's main transport systems, xylem, and phloem. They are found in vascular bundles throughout all plant organs, traversing roots, stems, and leaves. Xylem is in charge of transporting water and dissolved ions from the roots up through the plant.

Note: Permanent tissues are a group of living or dead cells formed by meristematic tissue that has lost their ability to divide and have been fixed in fixed positions in the plant body. Meristematic tissues that specialize lose their ability to divide. Cellular differentiation refers to the process of acquiring a permanent shape, size, and function.