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What is the inactive precursor of pepsin?
The inactive precursor of pepsin is called pepsinogen. It is secreted by the gastric chief cells in the stomach lining and is activated to pepsin in the presence of hydrochloric acid (HCl) in the gastric environment. This activation process prevents the enzyme from digesting the proteins in the cells that produce it. Pepsin then plays a crucial role in protein digestion by breaking down complex proteins into smaller peptides.
What cells produce the precursor enzyme of hydrochloric acid?
Parietal cells in the stomach lining produce pepsinogen, the precursor enzyme of hydrochloric acid. Pepsinogen is converted into pepsin, the active enzyme that helps break down proteins in the stomach.
How do you spell precursor?
Precursor
What is the use of ARPNET?
ARPNET is the precursor of the modern Internet.ARPNET is the precursor of the modern Internet.ARPNET is the precursor of the modern Internet.ARPNET is the precursor of the modern Internet.
What has the author Seamus G O'Regan written?
Seamus G. O'Regan has written: 'Cytosolic factors involved in the import of precursor proteins by plant mitochondria' -- subject(s): Plant mitochondria, Cytology, Plant cells and tissues, Cauliflower, Plant proteins
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.
Where is tyrosine found?
Tyrosine is an amino acid that is found all over the body in its polypeptide chains and proteins. It also serves as the precursor for the catecholamine neurotransmitter dopamine in the nervous system.
How are fats valuable or used by your body?
lipids or fats are used for structural roles, precursor molecules, anchors for peripheral surface proteins, signalling molecules and of course energy source.
Why is pepsin secreted as an inactive precursor called pepsinogen?
Pepsinogen is secreted as an inactive precursor because pepsin is a proteolytic enzyme that can damage the cells that produce it. By secreting pepsinogen, the stomach protects itself from self-digestion until it is needed to break down proteins in the stomach.
What is a precursor of basophil monoblast lymphoblast megakaryoblast or myeloblast?
The precursor of basophils is the basophil progenitor cell, the precursor of monoblasts is the monoblast cell, the precursor of lymphoblasts is the lymphoblast cell, the precursor of megakaryoblasts is the megakaryoblast cell, and the precursor of myeloblasts is the myeloblast cell. These precursor cells undergo differentiation and maturation processes to become fully functional mature blood cells.
what are polymers made of amino acids called?
Polymers made of amino acids are called polypeptides or proteins. Amino acids are the building blocks of proteins, and they are linked together through peptide bonds to form long chains known as polypeptides. These polypeptides can then fold into specific shapes to carry out various functions in the body.
What is the gastric enzyme that breaks down proteins into smaller polypeptides?
The gastric enzyme that breaks down proteins into smaller polypeptides is pepsin. It is produced in the stomach and activated from its precursor, pepsinogen, in the acidic environment of gastric juice. Pepsin plays a crucial role in protein digestion by cleaving peptide bonds, facilitating further breakdown of proteins in the digestive process.
