In this article we will discuss about the meaning and types of micrometry with experiments. Meaning of Micrometry: Micrometry is the science in which we have some measurement of the dimensions of an object being observed under the microscope. The method employs some special types of measuring devices which are so oriented that these can well be attached to or [...]
In this article we will discuss about the meaning and types of stomata. Meaning of Stomata: Stomata are very minute openings found in the epidermal layer of leaves, stem and other aerial parts of the plant. Each stoma remains surrounded by two kidney-shaped or bean-shaped cells called guard cells. Chloroplasts are always present in the guard cells. The inner wall [...]
General Characteristics of Trichomes: Some of the epidermal cells of axis, leaves and other plant parts grow out in the form of trichomes or hairs. They (Fig. 138) show following characteristics: 1. These are the elongations or the extensions of epidermai cells. 2. They are found singly or in groups. 3. Trichomes may be unicellular or multicellular. Morphologically, root hairs [...]