whats the function of the shoot system and the root system? in a plant?

Answer 1

The function of roots is to anchor the plant to its substrate and to absorb water and minerals. Thus, roots are generally found underground and grow downward, or in the direction of gravity. Unlike stems, they have no leaves or nodes. The epidermis is just behind the growing tip of roots and is covered with root hairs, which are outgrowths of the epidermal cells. The root hairs increase the surface area of the roots and serve as the surface through which water and nutrients are absorbed.

Internally, roots consist largely of xylem and phloem, although many are highly modified to carry out specialized functions. Thus, some roots are important food and storage organs—for example, beets, carrots, and radishes. Such roots have an abundance of parenchyma tissue. Many tropical trees have aerial prop roots that serve to hold the stem in an upright position. Epiphytes have roots modified for quick absorption of rainwater that flows over the bark of the host plants.

Roots increase in length through the activity of apical meristems and in diameter through the activity of lateral meristems. Branch roots originate internally at some distance behind the growing tip, when certain cells become meristematic.

The vascular tissue system consists of two kinds of conducting tissues: the xylem, responsible for conduction of water and dissolved mineral nutrients, and the phloem, responsible for conduction of food. The xylem also stores food and helps support the plant.

B1 Xylem

The xylem consists of two types of conducting cells: tracheids and vessels. Elongated cells, with tapered ends and secondary walls, both types lack cytoplasm and are dead at maturity. The walls have pits—areas in which secondary thickening does not occur—through which water moves from cell to cell. Vessels usually are shorter and broader than tracheids, and in addition to pits they have perforation—areas of the cell wall that lack both primary and secondary thickenings and through which water and dissolved nutrients may freely pass.

B2 Phloem

The phloem, or food-conducting tissue, consists of cells that are living at maturity. The principal cells of phloem, the sieve elements, are so called because of the clusters of pores in their walls through which the protoplasts of adjoining cells are connected. Two types of sieve elements occur: sieve cells, with narrow pores in rather uniform clusters on the cell walls, and sieve-tube members, with larger pores on some walls of the cell than on others. Although the sieve elements contain cytoplasm at maturity, the nucleus and other organelles are lacking. Associated with the sieve elements are companion cells that do contain nuclei and that are responsible for manufacturing and secreting substances into the sieve elements and removing waste products from them.

C Ground System

The ground, or fundamental, tissue systems of plants consist of three types of tissue. The first, called parenchyma, is found throughout the plant and is living and capable of cell division at maturity. Usually only primary walls are present, and these are uniformly thickened. The cells of parenchyma tissue carry out many specialized physiological functions—for example, photosynthesis, storage, secretion, and wound healing. They also occur in the xylem and phloem tissues.

Collenchyma, the second type of ground tissue, is also living at maturity and is made up of cells with unevenly thickened primary cell walls. Collenchyma tissue is pliable and functions as support tissue in young, growing portions of plants.

Sclerenchyma tissue, the third type, consists of cells that lack protoplasts at maturity and that have thick secondary walls usually containing lignin. Sclerenchyma tissue is important in supporting and strengthening those portions of plants that have finished growing.

Answer 2

Plant Shoot System

Answer 3

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whats the function of the shoot system and the root system? in a plant?

Answer 4

Shoot System Definition

Answer 5

what is the function of the shoot system and root system in plant

Answer 6

Plants are as intricate and complicated as animals. But you wouldn’t know that from looking at them cursorily. To begin with, you need to know what plants are, how plants differ from animals on both the cellular and organismal level, and the different categories of plants that exist. You should also know about the structure and function of the three most important parts of vascular plants: shoots(leaves,stems) and roots. In addition, it’s a good idea to have a basic knowledge of how plants grow. Plants also have various and unique means of reproducing themselves .

Roots
The roots of a plant draw water and minerals from the soil and pass them upward through xylem and phloem to the stem and leaves. Roots are also responsible for storing the plant’s organic nutrients, which are passed downward from the leaves through the phloem. Radiating from the roots is a system of root hairs, which vastly increase the absorptive surface area of the roots. Roots also anchor the plant in the soil.

Shoot system:( the stems, leaves, and flowers of plant) needs water and minerals from root system.The root and shoot systems of plants usually look quite different. This is partly because they form different kinds of structures.

For example, root systems consist generally of only one type of structure roots. Main root axes may branch to form branch root axes and these, in turn, may also branch to form a root system that is typically ramified throughout the soil in the area where the plant is growing.

In contrast, the shoot systems of seed plants tend to have much greater morphological complexity than root systems. Shoot systems are constructed of two basic morphological components: stems and leaves. The stem is typically a cylindrical axis, e.g. asparagus. Leaves are attached to stems at regions called nodes. We can readily find the nodes on asparagus stems by locating where the small triangular leaves are attached. The portion of the stem between two adjacent nodes is called an internode.A plant's shoot system involves leaves and stems. Leaves are sites of photosynthesis in plants. They are involved in exchange with the environment via evaporation . Leaves are also used in competition among plants.Stems help a plant with structural support, transport, and growth. They are also photosynthetic.

Answer 7

Reproduction.