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The normal pathway for a cell to make and release proteins involves transcription of DNA to mRNA in the cell nucleus, then translation of mRNA into protein by ribosomes in the cytoplasm. The synthesized protein is then folded and modified in the endoplasmic reticulum, processed in the Golgi apparatus, and finally transported in vesicles to be released from the cell.
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Which organelle serves as the transportation system in the cell?
The endoplasmic reticulum (ER) serves as the transportation system in the cell. It is responsible for synthesizing proteins and lipids, and acts as a pathway for these molecules to move throughout the cell.
How is a cell affected if a cell membrane doesn't have any membrane proteins?
If a cell membrane doesn't have any membrane proteins, important functions such as transport of molecules in and out of the cell, cell signaling, and cell adhesion may be compromised. Membrane proteins play crucial roles in these processes, so their absence could disrupt normal cell function and communication with the external environment.
How do aquaporins facilitate the movement of water across cell membranes?
Aquaporins are specialized proteins that act as channels in cell membranes, allowing water molecules to pass through. These proteins create a pathway for water to move across the membrane, enabling efficient and rapid transport of water into and out of cells.
What are proteins that are transported in vesicles made by?
Transport vesicles play a key part in moving molecules to and from the membrane-confined chambers of the secretory pathway. Proteins are transported in vesicles; the proteins are made on the cytosolic side of membranes.
What is A process by which vesicles release their contents outside the cell is called what?
Exocytosis is the process by which vesicles release their contents outside the cell. This process is essential for transporting proteins and other molecules out of the cell.
What is the normal path way a cell uses to make and release proteins?
Ribosomes to Golgi Appartus(Body) to Endoplasmic Reticulum
Trace the pathway of exporting protiens from the cell?
Examples of secretory proteins are collagen, insulin, and digestive enzymes of the stomach and intestine.
Which organelle serves as the transportation system in the cell?
The endoplasmic reticulum (ER) serves as the transportation system in the cell. It is responsible for synthesizing proteins and lipids, and acts as a pathway for these molecules to move throughout the cell.
A radioactive element is sometimes used to trace the pathway of chemical reactions in the cell If newly synthesized proteins are radioactive the radioactive element used could be?
The radioactive element used to trace the pathway of chemical reactions in cells for newly synthesized proteins is typically sulfur-35 (35S) or carbon-14 (14C). These isotopes are incorporated into proteins during synthesis, allowing researchers to track their movement and interactions within the cell.
What makes lipids and package of proteins for release from the cell?
Golgi bodies
What is a misregulation of the proteins that controls cell growth and division?
A misregulation of proteins that control cell growth and division can lead to uncontrolled cell proliferation, which can result in the development of cancer. This misregulation can be caused by mutations in the genes encoding these proteins, leading to abnormal cell signaling pathways and loss of normal cell cycle control mechanisms.
How is a cell affected if a cell membrane doesn't have any membrane proteins?
If a cell membrane doesn't have any membrane proteins, important functions such as transport of molecules in and out of the cell, cell signaling, and cell adhesion may be compromised. Membrane proteins play crucial roles in these processes, so their absence could disrupt normal cell function and communication with the external environment.
How do aquaporins facilitate the movement of water across cell membranes?
Aquaporins are specialized proteins that act as channels in cell membranes, allowing water molecules to pass through. These proteins create a pathway for water to move across the membrane, enabling efficient and rapid transport of water into and out of cells.
What is a signal transduction pathway?
A signal transduction pathway is a group of proteins that carry out transducing signals (which means it converts signals from outside the cell to a different signal inside the cell). A good example can be viewed when a hormone binds to the receptor in the plasma membrane (outside the cell), the receptor which has now been activated can now interact with intercellular proteins which produce new signals inside the cell.
What are proteins that are transported in vesicles made by?
Transport vesicles play a key part in moving molecules to and from the membrane-confined chambers of the secretory pathway. Proteins are transported in vesicles; the proteins are made on the cytosolic side of membranes.
What role does the lysosome membrane play in cell survival?
The lysosomes are responsible for not only the degradation of organelles and the long-lived proteins, but they are also responsible for the repair of the plasma membrane and selective degradation of proteins, release of endocytosed material and removal of certain pathogens. When the lysosome membrane breaks down the cell is on a pathway to either apoptosis (neurogeneration and aging), autophagy (eating oneself), or necrosis (death from within).
Are prions capable of reproducing outside of a host cell?
No, prions are not capable of reproducing on their own outside of a host cell. They are abnormal proteins that can cause other proteins to misfold, leading to disease. Prions replicate by inducing the misfolding of normal cellular proteins.
