Epidermis It is the outermost layer formed of a single layer of cells. It forms the protective layer of the stem. It has a thick waxy layer called cuticle over the external surface. It bears trichomes and a few stomata. Cortex The cortex is heterogeneous and differentiated into several sub- zones. The outer zone … Read more
Epidermis It is the outermost layer composed of a single layer of cells. Unicellular hairs are present. Cuticle and stomata are absent. Cortex: It is similar to dicot root, and is composed of parenchyma cells. Endodermis It is composed of compactly arranged barrel-shaped cells. The lateral walls of the cells have casparian thickenings. … Read more
Epidermis The outermost layer of a dicot root is called epiblema or piliferous layer. It is made of a single layer of parenchyma cells. The cells have tubular outgrowths called root hairs. Cuticle and stomata are absent. Cortex it is the region between epidermis and endodermis. It is homogeneous and is composed of loosely … Read more
Vascular tissue The vascular system is composed of the conductive tissues xylem and phloem. A group of xylem and phloem forms the vascular bundle. In dicots, cambium is present between the xylem and phloem. This allows the vascular bundle to form secondary xylem and phloem tissue. Such a vascular bundle is called an open vascular … Read more
A group of tissues carrying out a common function irrespective of their position is called a tissue system. There are 3 types of tissue systems in plants. Dermal /Epidermal tissue: They are protective tissues. Vascular tissue: Conduction of water, minerals and organic food materials. Ground tissue: All tissue except dermal and vascular tissues. Dermal Tissue … Read more
Phloem tissue is responsible for the conduction of food materials from the leaves to the rest of the plant body. It is composed of four types of cells – sieve tubes, companion cells, phloem fibres and phloem parenchyma. Sieve tubes It is composed of long narrow tubes called sieve tube elements, arranged in a … Read more
Complex tissue is composed of more than one type of cells (heterogeneous cells) working together as a single unit. In plants, xylem and phloem are the complex tissues, and they are the major components of the vascular bundles. Complex tissue is found in almost every part of the plant body as it is involved in … Read more
Permanent tissue is composed of cells that have lost the meristematic power and do not divide further. They may be living or dead cells, and thin-walled or thick-walled. Based on the composition of cells, permanent tissue is classified into two – Simple and Complex tissues. Simple permanent tissue Permanent tissue made of a single type … Read more
Anatomy refers to the study of internal structure and functional organization in living organisms. Cells are the basic building units, which are organized into tissues, organs and organ systems. In angiosperms, monocots and dicots have different internal structure. Tissue System in Plants A Tissue is a group of cells (of same or different type) having … Read more
Anatomy refers to the study of internal structure and functional organization in living organisms. Cells are the basic building units, which are organized into tissues, organs and organ systems. In angiosperms, monocots and dicots have different internal structure. Tissue System in Plants A Tissue is a group of cells (of same or different type) having … Read more