Fill in the blank sentences below: ________ is a protein-lined channel in the nuclear envelope that regulates the transportation of molecules between the nucleus and the cytoplasm; inside the nucleus , ________________ process happens which involve making an RNA copy of a gene sequence known as ____ molecule, that leaves the cell nucleus through the ______ and enters the cytoplasm where it binds to a ________ that serves as a template for ______ that directs the synthesis of the protein, which it encodes; ribosomes are of two kinds, one is floating in the cytoplasm which is the ______ribosome while the other is attach to ER known as ___ ribosome; proteins in the cell can be packaged, modify and distribute by the __________ and can be delivered to an organelle that produce ATP which is the _____.
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.
Fill in the blank sentences below:
________ is a protein-lined channel in the nuclear envelope that regulates the transportation of molecules between the nucleus and the cytoplasm; inside the nucleus , ________________ process happens which involve making an RNA copy of a gene sequence known as ____ molecule, that leaves the cell nucleus through the ______ and enters the cytoplasm where it binds to a ________ that serves as a template for ______ that directs the synthesis of the protein, which it encodes; ribosomes are of two kinds, one is floating in the cytoplasm which is the ______ribosome while the other is attach to ER known as ___ ribosome; proteins in the cell can be packaged, modify and distribute by the __________ and can be delivered to an organelle that produce ATP which is the _____.
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