EVERYDAY SCIENCE

Detailed explanation-1: -Primary dermal tissues, called epidermis, make up the outer layer of all plant organs (e.g., stems, roots, leaves, flowers). They help deter excess water loss and invasion by insects and microorganisms. The vascular tissues are of two kinds: water-transporting xylem and food-transporting phloem.

Detailed explanation-2: -The dermal tissue system-the epidermis-is the outer protective layer of the primary plant body (the roots, stems, leaves, flowers, fruits, and seeds). The epidermis is usually one cell layer thick, and its cells lack chloroplasts.

Detailed explanation-3: -The plant epidermis is a protective tissue that covers the entire surface of the plant. The epidermis protects the plant from infection and water loss. It regulates the gas exchange in plant cells. The epidermis regulates the secretion of metabolic substances.

Detailed explanation-4: -The dermal system itself consists of a layer of tightly packed cells called the epidermis. On most plant stems and leaves, the epidermis is covered with a waxy coating called the cuticle, which helps prevent water loss through the epidermis.

Detailed explanation-5: -Epidermal cells in plants play an important role in both photosynthesis and the overall health of the plant. Epidermal tissue in plants is comprised of three main cell types: pavement cells, guard cells, and their subsidiary cells.