different types of plant tissue

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Question:What are the 3 major types of differentiated tissues in plants?

Answers:I have 3 types of tissue that are found in the root of the plants Dermal tissue, Ground tissue, and vascular tissue. Hope this is the answer

Question:1. are guard cells protective/dermal tissue? 2. are phloem and xylem RAYS vascular or ground tissue? (what are their functions) 3. What type of tissue is spring and summer wood? What are their functions? 4. Is pith ground tissue? And what is its function along with the pith ray? 5. what is type of tissue is the stele made of? and what is its function? Does it protect the vascular bundle?

Answers:1. Guard cells form an opening through the epidermis allowing for gases to enter and leave the leaf. The guard cells can be considered to be both protective and dermal cells. 2. Rays are composed of parenchyma cells but do function in movement of fluids laterally to the outside of the tree. 3. Spring wood and summer wood are composed of xylem cells. The difference is due to amount of water and nutrients available for formation of new cells by the vascular cambium. 4. Pith is formed primarily by parenchyma, a ground tissue. Food reserves can be found in the parenchyma in some plants. 5. The stele is formed by the endodermis, pericycle, xylem and phloem. Cut a carrot length-wise (longitudinally) and you'll see the stele in the center of the root with the cortex to the outside.

Question:I'm in 7th grade and i'm working on my science homework and i theres one question that i cant find an answer to! so if you would help me i would really appreciate it!

Answers:When you grow a plant from a cutting, you just cut a piece from the parent plant and put it in soil (maybe dipping it in a rooting powder first). For succulents, the cut end should be allowed to dry and harden first. Maybe you've done this yourself with a spider plant or Christmas cactus. For plant tissue culture, a scientist or plant propagator only removes a few cells from the meristem of a plant. The meristem (or meristematic tissue) is an area where the cells haven't differentiated into specialized cells (root, leaf, flower, etc.) yet, so these cells have the potential to grow into any type of cell in the plant. They're also too young to have been infected by viruses, so they can be used to produce disease-free plants. The cells are placed on a nutrient agar and sealed so the cells can grow into baby plants in a disease-free environment. This is the best way to produce a lot of plants that are identical to the parent plant the cells were taken from (they're clones of the plant that donated the cells) in a short period of time. Orchids were one of the first plants to be produced this way, but now there are lots more.

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Meristematic Cells In Plant Tissues :Check us out at www.tutorvista.com A meristem is the tissue in all plants consisting of undifferentiated cells (meristematic cells) and found in zones of the plant where growth can take place. The term meristem was first used by Karl Wilhelm von N geli (1817-1891) in his book Beitr ge zur Wissenschaftlichen Botanik in 1858 It is derived from the Greek word merizein ( ), meaning to divide, in recognition of its inherent function. Differentiated plant cells generally cannot divide or produce cells of a different type. Therefore, cell division in the meristem is required to provide new cells for expansion and differentiation of tissues and initiation of new organs, providing the basic structure of the plant body. Meristematic cells are analogous in function to stem cells in animals, are incompletely or not at all differentiated, and are capable of continued cellular division (youthful). Furthermore, the cells are small and protoplasm fills the cell completely. The vacuoles are extremely small. The cytoplasm does not contain differentiated plastids (chloroplasts or chromoplasts), although they are present in rudimentary form (proplastids). Meristematic cells are packed closely together without intercellular cavities. The cell wall is a very thin primary cell wall. Maintenance of the cells requires a balance between two antagonistic processes: organ initiation and stem cell population renewal.

Plant Tissues :Check us out at www.tutorvista.com Plants are composed of three major organ groups: roots, stems and leaves. As we know from other areas of biology, these organs are comprised of tissues working together for a common goal (function). In turn, tissues are made of a number of cells which are made of elements and atoms on the most fundamental level. In this section, we will look at the various types of plant tissue and their place and purpose within a plant. It is important to realize that there may be slight variations and modifications to the basic tissue types in special plants. Plant tissues are characterized and classified according to their structure and function. The organs that they form will be organized into patterns within a plant which will aid in further classifying the plant. A good example of this is the three basic tissue patterns found in roots and stems which serve to delineate between woody dicot, herbaceous dicot and monocot plants