Author: workhouse123
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Biogenesis
Ribosome biogenesis refers to the biosynthesis of ribosomes. In eukaryotes, the sites of ribosome formation are the cytoplasm and the nucleus. The ribosome of eukaryotes is the 80S as opposed to the ribosome of prokaryotes, which is 70S. The 80S ribosome consists of a large subunit (60S) and a small subunit (40S). Each of these subunits…
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Functions of Ribosomes
Translation The ribosomes are described as the site of protein synthesis. Protein synthesis is the process of creating protein molecules. In biological systems, the major steps are amino acid synthesis, transcription, and translation. The ribosomes, though, are involved in the translation step. During translation, the amino acids are added by tRNAs and then are linked together in a specific…
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Plant Cell Functions
Plant cells are the building blocks of plants. Photosynthesis is the major function performed by plant cells. Photosynthesis occurs in the chloroplasts of the plant cell. It is the process of preparing food by the plants, by utilising sunlight, carbon dioxide and water. Energy is produced in the form of ATP in the process. A few…
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Plant Cell Types
Cells of a matured and higher plant become specialised to perform certain vital functions that are essential for their survival. Few plant cells are involved in the transportation of nutrients and water, while others for storing food. The specialised plant cells include parenchyma cells, sclerenchyma cells, collenchyma cells, xylem cells and phloem cells. Following are some…
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Plant Cell Structure
Just like different organs within the body, plant cell structure includes various components known as cell organelles that perform different functions to sustain itself. These organelles include: Cell Wall It is a rigid layer which is composed of polysaccharides cellulose, pectin and hemicellulose. It is located outside the cell membrane. It also comprises glycoproteins and polymers such…
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Plant Cell Diagram
The plant cell is rectangular and comparatively larger than the animal cell. Even though plant and animal cells are eukaryotic and share a few cell organelles, plant cells are quite distinct when compared to animal cells as they perform different functions. Some of these differences can be clearly understood when the cells are examined under an…
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Plant Cell Definition
Plant cells are eukaryotic cells with a true nucleus along with specialized structures called organelles that carry out certain specific functions.
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