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Short Answers for Plant Diversity Botany Class - Assignment Example

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The "Short Answers for Plant Diversity Botany Class" paper describes the plant cell wall, including its location, composition, origin, function and other important aspects, compares the chloroplast and the mitochondrion, including their structure, function, origin, and other important aspects…
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Short Answers for Plant Diversity Botany Class
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Download file to see previous pages These are the two essential features of the plant and the cell wall plays an important role to carry out these functions.

It prevents the plasma membrane from rupturing when the cell is placed in the hypotonic solution, as there is endosmosis of the fluid. It controls the growth of the cell and hence plays an imperative role in cellular morphogenesis.
The cell wall also serves as an arsenal for the storage of carbohydrate molecules. These storage molecules could be used in due course of cellular metabolism. The seed coat has stored carbohydrate molecules.

Oligosaccharides present in the cell wall act as hormones and play an important role in cellular signaling. It induces the formation of phytoalexin and chitinase synthesis. It also enhances cytoplasmic calcium concentration. Moreover, the cell wall of the roots of legumes harbors nitrogen-fixing bacteria.

The origin of the cell wall took place with the evolution of eukaryotes from the prokaryotes. The prokaryotes, bacterial cell walls got transformed into the plant cell wall. With the cell division of the plant cell, the cell plate formation occurs between the daughter nuclei. The vesicles are formed by the secretory cellular organelle the Golgi apparatus, this is a non-cellulosic component of the cell wall. Gradually other polysaccharides are formed by the endoplasmic reticulum and through Golgi, they aid in the formation of the cell wall.

Answer: Mitochondria and Chloroplasts are the cellular organelles present in the eukaryotic cells. While mitochondria are present in both the plant and the animal cell, the chloroplast is confined to the plant cells.

Mitochondria are called the powerhouse of the cell. It is 1µm in length. Mitochondria help in cellular respiration and the metabolism of the cell. It generates Adenosine Tri Phosphate (ATP) by means of the Krebs Cycle. The complete oxidation of the glucose molecule takes place in mitochondria. Pyruvic acid which is generated in the cytoplasm as a result of glucose oxidation is transported to the mitochondria where the Pyruvic acid onsets the Krebs cycle for generating the energy currency, the ATP. ...Download file to see next pagesRead More
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