anatomy of vascular plants

Anatomy which favours the amount of CO 2 diffusion into collenchyma cells the intensity dilution of light and the rate of photosynthesis. Thickness of epidermis, size structure, position and frequency of stomata, distribution of vascular tissue and intercellular spaces, positi..

Leaf represents an important part of the plant body. It is involved in vital physiological activities such as transpiration, respiration and photosynthesis. Unlike the stem and the root, the leaf is flat and hence, the anatomy of the leaf differs very much from that of stem or r..

Tracheophytes include the true land plants or vascular plants. The adult plant body is a sporophyte and shows definite root, stem and leaves. Vascular tissues xylem and phloem are present for the translocation of water and food respectively. Gametop..

Example: Helianthus annus (Sunflower) A transverse section taken through the young stem of Sun-flower reveals the following detail..

They are found irregularly scattered in the ground tissue. Towards the periphery, the bundles are smaller in size while towards the centre, they are larger in size. The smaller bundles are younger, while the larger ones are older. Hence, the arrangement is described as centrifugal. Each vascu..

Example: Maize A transverse section passing through the midrib region of an iso-bilateral leaf (Maize) reveals the following structure. Epidermis is in two layers, one on each surface of the leaf. Both the epidermal layers are composed of compactly arranged, barrel shaped cells. Cuticle and trichom..

The vascular tissue system is a derivative of procambium. It is represented by the conducting tissues-xylem and phloem. These vascular tissues occur in the form of strands extending from one end of the plant body to another. These strands are known as vascular..

. It has four cellular elements tracheids, tracheae, fibres and parenchyma of which only xylem parenchyma is living. Xylem tracheae (or vessels) are the most active water conducting elements. Based on the pattern of lignification, they can be distinguished into annular, spiral, scalariform, reticul..

As mentioned earlier, the transport in higher plants is with the help of the vascular system. Thus, these plants are also called the vascular plants..

Transport in Plants - As mentioned earlier, the transport in higher plants is with the help of the vascular system. Thus, these plants are also called the vascular plants..