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Are the digestive enzymes produced by the pancreas produced as inactive precursors or are they activated in the digestive tract by proteolysis?
Woonie
BOTH!!!
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∙ 16y ago
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What are zygomens?
an inactive substance that is converted into an enzyme when activated by another enzyme.
What glandular secretions involved in digestion would be most likely released initially as inactive precursors?
protein-digesting enzymes
The group of proteins that normally circulate in the blood in an inactive form and are activated by contact with nonspecific antigens such as foreign blood cells or bacteria?
complement
True or false Lysosomes perform digestive functions within a cell?
Yes. Born as endosomes that contain inactive enzymes, lysosomes are spherical, membranous organelles containing activated digestive enzymes. Lysosomes are large and abundant within phagocytes, the cells that dispose of invading bacteria and cell debris. Lysosomal enzymes can digest almost all kinds of biological molecules. They work best in acidic conditions and so are called acid hydrolases.
What organ secretes carboxypeptidase?
Carboxypeptidase is secreted by Pancreas in inactive form (procarboxypeptidase) and is activated by trypsin. Carboxypeptidase is also secreted by small intestine as brush border enzyme. Reference: Human Anatomy and Physiology by Elaine N. Marieb
Why are proteolytic enzymes produced in an inactive form?
Proteolytic enzymes will destroy the cells that produced them if they are produced in an active form. To protect the body's own cells these enzymes are secreted in an inactive form into the digestive tract and activated where they are needed.
How an inactive protein can be converted into active protein?
An inactive protein can be converted into an active protein through the process of proteolysis. This process happens through the hydrolysis of the peptide bond, which is aided by cellular enzymes.
What are zygomens?
an inactive substance that is converted into an enzyme when activated by another enzyme.
What glandular secretions involved in digestion would be most likely released initially as inactive precursors?
protein-digesting enzymes
What are the digestive enzymes secreted as inactive proteins called?
To protect the body.
What is the last step in the sequence of events when cyclic AMP acts as a second messenger?
the last step is ofcourse glycogen breakdown.......before that inactive glycogen phosphorylase-b is activated and phosphorylated to glycogen phosphorylase-a by the help of activated phosphorylase kinase........ ......phosphorylase kinase was activated by activated protien kinase..and activated protien kinase was activated by cyclic amp...........
Why do the pancreas enzymes need to be inactive until they reach th small intestine?
Small Intestine is where they are activated to put to use.
Why pancreas is not digested by its own enzymes?
The acinar cells of the pancreas secrete proteolytic enzymes as zymogens or proenzymes. These enzymes are in their inactive form and must be activated by something else. One of these enzymes, trypsinogen, is activated by enterokinase found in the cells that make up the duodenum wall. Once activated to trypsin, it activates the other digestive enzymes.
What is the difference between pepsin and pepsinogen?
Pepsin is a powerful protein digesting enzyme which is far too dangerous in its active form so it is released in an inactive pepsinogen form by the cell and activated only in the digestive tract where it is required to be active.
The group of proteins that normally circulate in the blood in an inactive form and are activated by contact with nonspecific antigens such as foreign blood cells or bacteria?
complement
What substances are secreted by the pancreas into the duodenum?
Acid chyme (nutrient broth from food) enters from the stomach. Protein digesting enzymes enter, but in an inactive form. Pancreatic proteases become activated here. And several digestive enzymes go into the lumen of the duodenum.
Is pepsinogen organic or inorganic?
Pepsinogen is an inactive form of the digestive enzyme pepsin. Almost all enzymes are proteins, and proteins are organic macromolecules.
