Inside of each cell there are smaller units called organelles. These so called organelles, although all have almost completely different functions, work together to keep the cell alive so that it can complete its job of reproducing other cells. Some organelles may serve the main purpose of energy production, mitochondria, in which keeps the cell functioning while others may be specifically designated to hold water, salt, and excess materials (vacuoles).
In terms of reproduction, DNA has to find a way to leave the nucleus but, it is to large to leave the nucleus. DNA will somehow have to turn into RNA which is smaller. The process of DNA turning into RNA is called transportation and takes place throughout the nucleus and the endoplasmic reticulum. . Transportation occurs by DNA being directed to the nuclear pore so that it can turn into a single helix. The DNA then turns into mRNA and is released into the cytoplasm in the form of ribosomes where it is then translated into proteins. The proteins that make up the tRNA contain a sequence of nucleotides referred to as codons.
In terms of reproduction, DNA has to find a way to leave the nucleus but, it is to large to leave the nucleus. DNA will somehow have to turn into RNA which is smaller. The process of DNA turning into RNA is called transportation and takes place throughout the nucleus and the endoplasmic reticulum. . Transportation occurs by DNA being directed to the nuclear pore so that it can turn into a single helix. The DNA then turns into mRNA and is released into the cytoplasm in the form of ribosomes where it is then translated into proteins. The proteins that make up the tRNA contain a sequence of nucleotides referred to as codons.
1.1.2- Comparing Prokaryote and Eukaryotic cells
There are many obvious differences ,which can be visually seen, between prokaryotic cells and eukaryotic cells.
- The organelles are the main differences between the two types of cells.
- Eukaryotic cells are clearly more complex than the simpler prokaryotic cells.
- Prokaryotic cells are usually quiet a bit smaller than Eukaryotic cells while Prokaryotic cells also lack a nuclear membrane.
- Another visually noticable difference between the two cells is that Prokaryotic cells have a flagella. A flagella is a whip-like tail stucture that helps the cell in transportation processes.
- Prokaryotic cells divide using Binary fission. [Video below] Eukaryotic cells divide by hte process called mitosis.
1.1.3 Cell differentiation in unicellular organisms
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There are over 70 trillion different cells throughout the human body. Hair, bones, fingernails, muscles, organs, and every living thing is composed of cells.Each cell has a different function throughout the body. These cells all work in fraternization to keep the organism functioning properly.Stem cells are undifferentiated cells that can transform into new cells as well as duplicate. Differentiation means that one cell performs a different function than another cell, depending on where it is in your body.(askabiologist.asu.edu)