Need help:.Diagram the small ribosome subunit scanning the 5’-UTR to initiate TL in a eukaryote. Show the Kozak consensus sequence and highlight the AUG where the ribosome will start TL.
Structure and Composition of Cell Membrane
Despite differences in structure and function, all living cells in multicellular organisms are surrounded by a cell membrane. Just like the outer layer of the skin separates the body from its environment similarly, the cell membrane, also known as 'plasma membrane,' separates the inner content from its exterior environment.
Cell Membrane
The cell membrane is known by different names like plasma membrane or cytoplasmic membrane, or biological membrane. The term "cell membrane" was first introduced by C. Nageli and C. Cramer in the year 1855. Later on, in 1931, the term "plasmalemma" for cell membrane was given by J. Plowe. The cell membrane separates the cell's internal environment from the extracellular space. This separation allows the protection of cells from their environment.
Prokaryotes vs Eukaryotes
The cell is defined as the basic structural and functional unit of life. The cell membrane bounds it. It is capable of independent existence.
A eukaryotic ribosome is a complex molecular machine that is responsible for translating messenger RNA (m RNA) into proteins. It is made up of two subunits, the smaller 40S subunit and the larger 60S subunit. The 40S subunit binds to the m-RNA at the 5' cap, and the 60S subunit then binds to the 40S subunit to form a complete ribosome.
- The 40S subunit is made up of 33 proteins and one ribosomal RNA (r RNA).
- The 60S subunit is made up of 49 proteins and four r RNAs.
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