vacuol in animal small vacual in plant larg what will be the reason?
960610
vacuoles in plants are larger than vacuoles in animals because animals can move around and drink water while plants stay in one place! they need larger vacuoles to store more water(because main function of vacuoles is to store water)
903376
vacuoles tend to be very large and are extremely important in providing structural support, as well as serving functions such as storage, waste disposal, protection, and growth. Many plant cells have a large, single central vacuole that typically takes up most of the room in the cell (80 percent or more). Vacuoles in animal cells, however, tend to be much smaller, and are more commonly used to temporarily store materials or to transport substances.\n\nBecause the central vacuole is highly selective in transporting materials through its membrane, the chemical palette of the vacuole solution (termed the cell sap) differs markedly from that of the surrounding cytoplasm. For instance, some vacuoles contain pigments that give certain flowers their characteristic colors. The central vacuole also contains plant wastes that taste bitter to insects and animals, while developing seed cells use the central vacuole as a repository for protein storage.\n\nAmong its roles in plant cell function, the central vacuole stores salts, minerals, nutrients, proteins, pigments, helps in plant growth, and plays an important structural role for the plant. Under optimal conditions, the vacuoles are filled with water to the point that they exert a significant pressure against the cell wall. This helps maintain the structural integrity of the plant, along with the support from the cell wall, and enables the plant cell to grow much larger without having to synthesize new cytoplasm. In most cases, the plant cytoplasm is confined to a thin layer positioned between the plasma membrane and the tonoplast, yielding a large ratio of membrane surface to cytoplasm.\n\nThere are more important functions of central vacuole but i guess the functions above are enough for you to understand its role.\n\n:)
794257
the base of the leaf(pulvinus)on touchin loses its osmoscity,\nthis makes it release water,to saroundin region of higher osmotic pressure\nthis makes the base weak...unable 2 take the weight of the leaf it droops..
912441
In a hypertonic solution the water inside the cell leaves, causing the cell to shrivel.  Since a plant cell has a cell wall, the cytoplasm and plasma membrane will shrink away from the cell wall (called plasmolysis).  This decrease in turgor pressure means the plant will wilt.
179271
vacuoles r mainly used to store stuff. during phagocytosis for eg, they compartmentalise ingested material. If the cell wants to eat whatever they took in, the vacuoles will typically fuse with lysosomes, and the lysosome will break down whatever's inside the vacuole by using nasty acids at pH 1-2(sometimes, lysosomes r called suicide bags, because on occassion, lysosomes pop and spill its acid into the cell and kills it... but normally, it's thick membrane stops that from happenin... lol)\n\nYa, vacuoles can also be used to transport material around the cell. The Golgi apparatus, for eg, uses it to transport membrane proteins to the plasma membrane.\n\nHope this helps!
512503
likely to be due to the osmotic gradient set up due to the high carboydrate concentration in the cytosol.\n\non the other hand, who cares?
911568
My best guess would be that the chloroplast would be marked as \n"non-self" in the cell and would be degraded in the lysosome. It would be might complicated to keep the chloroplast from being degraded.
813946
Lysosomes are organelles that contain digestive enzymes to digest macromolecules. They are found in both animal and plant cells but they are rare in plant cells. They are built in the Golgi apparatus.
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Centrioles.\n\nNucleic acid.\n\nCell membrane is found in both animals and plants but cell wall is found only in plants. Cell wall is made up of cellulose (carbohydrates), while cell membrane is made up of lipids. Cell wall does not regulate the movement of substances in and out of it, but cell membrane does.
985611
Most plant cells have a cell wall made of cellulose while most animal cells don't.\n\nPlant cells often have a large central vacuole which isn't found in animal cells.\n\nFinally, some (but not all) plant cells have chloroplasts, and animal cells never have them.
1179455
Animals have a circulatory system that transports fluids, chemicals, and nutrients around within the animal body. Some plants have an analogous system: the vascular system in vascular plants; trumpet hyphae in bryophytes.\n\nRoot hairs are thin-walled extensions of the epidermal cells in roots. They provide increased surface area and thus more efficient absorption of water and minerals. Water and dissolved mineral nutrients enter the plant via two routes. \n\n\nWater and selected solutes pass through only the cell membrane of the epidermis of the root hair and then through plasmodesmata on every cell until they reach the xylem: intracellular route (apoplastic). Water and solutes enter the cell wall of the root hair and pass between the wall and plasma membrane until the encounter the endodermis, a layer of cells that they must pass through to enter the xylem: extracellular route (symplastic). \n\n\nThe endodermis has a strip of water-proof material (containing suberin) known as the Casparian strip that forces water through the endodermal cell and in such a way regulates the amount of water getting to the xylem. Only when water concentrations inside the endodermal cell fall below that of the cortex parenchyma cells does water flow into the endodermis and on into the xylem.\nXylem and Transport \nXylem is the water transporting tissue in plants that is dead when it reaches functional maturity. Tracheids are long, tapered cells of xylem that have end plates on the cells that contain a great many crossbars. Tracheid walls are festooned with pits. Vessels, an improved form of tracheid, have no (or very few) obstructions (crossbars) on the top or bottom of the cell. The functional diameter of vessels is greater than that of tracheids.\n\nWater is pulled up the xylem by the force of transpiration, water loss from leaves. Mature corn plants can each transpire four gallons of water per week. Transpiration rates in arid-region plants can be even higher. Water molecules are hydrogen bonded to each other. Water lost from the leaves causes diffusion of additional water molecules out of the leaf vein xylem, creating a tug on water molecules along the water columns within the xylem. This "tug" causes water molecules to rise up from the roots to eventually the leaves. The loss of water from the root xylem allows additional water to pass throught the endodermis into the root xylem.\n\nCohesion is the ability of molecules of the same kind to stick together. Water molecules are polar, having slight positive and negative sides, which causes their cohesion. Inside the xylem, water molecules are in a long chain extending from the roots to the leaves. \n\nAdhesion is the tendency of molecules of different kinds to stick together. Water sticks to the cellulose molecules in the walls of the xylem, counteracting the force of gravity and aiding the rise of water within the xylem. \n\nCohesion-Adhesion Theory\nTranspiration exerts a pull on the water column within the xylem. The lost water molecules are replaced by water from the xylem of the leaf veins, causing a tug on water in the xylem. Adhesion of water to the cell walls of the xylem facilitates movement of water upward within the xylem. This combination of cohesive and adhesive forces is referred to as the Cohesion-Adhesion Theory.\n\n\nGuard Cells Regulate Transpiration\nIn most environments, the water concentration outside the leaf is less than that inside the leaf, causing a loss of water through openings in the leaf known as stomata (singular = stoma). Guard cells are crescent-shaped cells of the epidermis that flank the stoma and regulate the size of the opening. Together, the guard cells and stoma comprise the stomatal apparatus. The inner wall of the guard cell is thicker than the rest of the wall. When a guard cell takes up potassium ions, water moves into the cell, causing the cell to become turgid and swell, opening the stoma. When the potassium leaves the guard cell, the water
654595
It's a non-moving animal.  It's cell type belongs to the animal kingdom.
607138
plant cells have cell walls to give them structure. they would be more box shaped where as animal cells would be more rounded since they dont have a cell wall.
936430
An onion skin cell does not have the same structure as a normal plant cell... the skin cells are lacking chrolophyll.  This is because the onion bulb grows underground and does not need the sunlight to photosynthesize... the leaves do so.
782757
The central vacuole in plant cells is enclosed by a membrane termed the tonoplast, an important and highly integrated component of the plant internal membrane network (endomembrane) system. This large vacuole slowly develops as the cell matures by fusion of smaller vacuoles derived from the endoplasmic reticulum and Golgi apparatus.
385993
It is pinched off by the growing cell wall-In animal cells, the membrane is very fluid, and thus in order to have another cell, the cell membrane must draw in to enclose two seperate spaces.  In a plant cell, the cell wall is stiff and relatively inflexible, and thus in order to seperate the cell into two spaces, the cell wall grows as a partition.
156389
plant cells form a disk during the final splitting phase, while animal membranes constrict.  Also, it is easier to see earlier in animals, and animals have centrioles, plants dont.  thats all my textbook says.  the phases and everything are the same, though.