The nucleolus of a cell is part of the production of ribosomes and contains the cell's RNA, one of the vital building blocks that tells the cell what it is. Ribosomes generate proteins that are needed for the basic functions of living cells. Cells have a roughly spherical shape, which coincides with the rounded shape of the nucleolus.Know More
Thanks to the presence of a nucleolus, cells can generate and interact with proteins that help them generate more cells and perform other complex tasks. Proteins are large biological molecules and are part of the process of replicating DNA, making them vital in creating the building blocks of life.
Nucleoli are found only in eukaryotic cells and are a vital part of the entire structure. The structure of this cell component was first theorized properly in 1964 when studies of a species of frog yielded insightful results. Experts discovered that cells that lacked a nucleolus in their structure were not capable of life in the case of these frog eggs. Only the cells that contained a nucleolus seemed to be able to produce the necessary components to ultimately grow into a healthy new frog. The scientists who discovered this were John Gurdon and Donald Brown.Learn more about Cells
Prokaryotic cells contain ribosomes to handle their protein production. The ribosomes in prokaryotic cells, such as bacteria, are free floating in the cytosol of the cell rather than bound inside a nuclear membrane; this is because prokaryotic cells do not have a nucleus.Full Answer >
The ribosomes in the cytoplasm are the sites of protein translation in the cell. Translation refers to taking a copy of messenger RNA, or mRNA, and making a protein from the code.Full Answer >
Proteins of the mammalian cell are synthesized on ribosomes that are either free in the cytosol or attached to the endoplasmic reticulum. Ribosomes suspended in the cytosol make proteins that function in the cytosol. Bound ribosomes make proteins that are included in the cell's membrane or exported from the cell.Full Answer >
Structures inside a eukaryotic cell include a nucleus, genetic material, a plasma membrane, ribosomes and a cytoplasm. The majority of eukaryotic cells also include internal structures within their membranes, known as organelles. Mitochrondria, golgi bodies, lysosomes, endoplasmic reticulum and vesicles are the different types of organelles.Full Answer >