What is a mesophytic leaf?
Mesophytic plants have rigid, sturdy, freely branched stems and fibrous, well-developed root systems– either fibrous roots or long taproots. The leaves of mesophytic plants have a variety of leaf shapes, but they are generally flat, thin, relatively large, and green in color.
What are the label parts of the leaf?
Label the parts of the leaf.
- A. (1)-Stipule (2)-Vein (3)-Margin (4)-Lamina.
- B. (1)-Petiole (2)-Midrib (3)-Lamina (4)-Vein.
- C. (1)-Stipule (2)-Vein (3)-Lamina (4)-Margin.
- D. (1)-Petiole (2)-Vein (3)-Midrib (4)-Margin.
What is mesophyll leaf anatomy?
Mesophyll is the internal ground tissue located between the two epidermal cell layers of the leaf; and is composed of two kinds of tissues: the palisade parenchyma, an upper layer of elongated chlorenchyma cells containing large amounts of chloroplasts; and the spongy parenchyma, a lower layer of spherical or ovoid …
What are Mesophytes plants?
Mesophytes are terrestrial plants which are neither adapted to particularly dry nor particularly wet environments. An example of a mesophytic habitat would be a rural temperate meadow, which might contain goldenrod, clover, oxeye daisy, and Rosa multiflora.
How does a leaf’s structure support its main function?
Leaf function The main function of a leaf is to produce food for the plant by photosynthesis. Chlorophyll, the substance that gives plants their characteristic green colour, absorbs light energy. The internal structure of the leaf is protected by the leaf epidermis, which is continuous with the stem epidermis.
What is leaf venation?
Definition of venation : an arrangement or system of veins (as in the tissue of a leaf or the wing of an insect)
What is mesophyll cell?
Mesophyll cells in a leaf are the principal centers of photosynthesis. Carbon dioxide from the atmosphere enters the leaf by diffusion through the stomata. Water from the soil is taken up by the roots, sent up through the stem and finally to the leaves where it is distributed in the mesophyll tissue.
What is called mesophyll?
mesophyll. / (ˈmɛsəʊˌfɪl) / noun. the soft chlorophyll-containing tissue of a leaf between the upper and lower layers of epidermis: involved in photosynthesis.
What are the characteristics of mesophytes?
Answer. Mesophytes do not have any specific morphological adaptations. They usually have broad, flat and green leaves; an extensive fibrous root system to absorb water; and the ability to develop perennating organs such as corms, rhizomes and bulbs to store food and water for use during drought.
Where are mesophytes found?
Mesophytes refer to the community of terrestrial plants, which can neither adjust in too wet nor in water-scarce conditions. In simple words, they require a moderate amount of hot and humid climatic conditions. Mesophyte plants inhabit the soil that provides an average dry-wet environment for overall growth.
What is the mesophyll leaf?
The mesophyll is a dorsiventral leaf that is divided into upper palisade and lower spongy. The palisade parenchyma lies in contact with the upper epidermis and the cells are columnar in shape.
What is the difference between a hydrophytic and mesophytic leaf?
The structure of a hydrophytic leaf differs from a mesophytic leaf due to selective pressures in the environment — water is plentiful, so the plant is more concerned with staying afloat and preventing herbivory. Observe a prepared slide of a hydrophyte, such as Nymphaea, commonly called a water lily.
Why is there no differentiation between the upper and lower mesophyll?
Lack of differentiation between the upper and lower parts of the mesophyll may be due to the orientation of the leaves (for example, both sides of the leaf intercept sunlight), their form, and other adaptations. Certain flowering plants, called C4 plants, often have mesophyll that is concentrically arranged around the vascular bundles.
How is leaf anatomy related to the environment?
Leaf anatomy may have modifications related to the environment that a particular plant inhabits. Plants adapted to aquatic environments may have large air spaces in the mesophyll of their leaves. This parenchyma with air spaces is known as aerenchyma (Greek aēr = air).