What are the four regions of the stomach?
The stomach has four major parts: the oesophagus opens into the cardiac region, followed by fundic and the body region.... View Article
Latest Posts
What happens if the shape of a protein is altered?
A small change in the protein shape can make it dysfunctional. E.g. enzymes are highly specific and if the active... View Article
What does cholecystokinin mean?
Cholecystokinin is a hormone secreted by the cells in the duodenum. It stimulates the secretion of the gallbladder and pancreas.... View Article
What is the source of Enterokinase?
Enterokinase is secreted by intestinal mucosa in the duodenum. It converts trypsinogen to trypsin, which is the active form. This... View Article
What is the effect of trypsin?
Trypsin is a proteolytic enzyme secreted by the pancreas as trypsinogen (inactive form). It hydrolyses the peptide bonds present in... View Article
What is the active form of chymotrypsin?
Chymotrypsin is the active form and chymotrypsinogen is the inactive form. Trypsin activates chymotrypsinogen. It is secreted by the pancreas.... View Article
What does cleaving a protein do?
Protein cleavage is the breakdown of peptide bonds present between amino acids in the polypeptide chain. Proteolytic enzymes break proteins... View Article
How is trypsin activated?
Trypsin is present in pancreatic juice as trypsinogen, which is the inactive form. It is activated by enterokinase secreted by... View Article
What is the function of Enterokinase?
Enterokinase is secreted by the intestinal mucosa. It activates trypsinogen to trypsin, present in pancreatic juice. Also Check: What is... View Article
Is chymotrypsin a digestive enzyme?
Is chymotrypsin a digestive enzyme? Yes, chymotrypsin is a digestive enzyme secreted by the pancreas as chymotrypsinogen (inactive form). It... View Article
What is the function of the enzymes trypsin and chymotrypsin?
Trypsin and chymotrypsin are proteolytic enzymes and are secreted by the pancreas as inactive forms, viz., trypsinogen and chymotrypsinogen. Enterokinase... View Article
Which gas is excreted through the alveoli?
Our lungs eliminate large amounts of carbon dioxide through exhalation. Also Check: Do Lungs Have Positive or Negative Pressure? What... View Article
Are the lungs located in the thoracic cavity?
Yes, lungs are located in the thoracic cavity. Each lung is surrounded by double-layered pleura and pleural fluid is present... View Article
What causes alveoli damage?
Emphysema is a chronic disorder, where alveolar walls are damaged resulting in a decrease in the respiratory surface. Smoking is... View Article
How do alveoli adapt to their function?
Alveoli present in the lungs have thin and moist walls to facilitate gaseous exchange. They increase respiratory surface area and... View Article
What happens to ACTH levels with Addison’s disease?
In Addison’s disease, there is an underproduction of hormones such as cortisol by the adrenal cortex. This occurs due to... View Article
Which is not a steroid based hormone?
There are many hormones that are not steroids. Chemically hormones can be proteins or polypeptides such as insulin, glucagon, etc.... View Article
What happens when you have too much ACTH?
Too much ACTH stimulates excess production and release of cortisol. Cushing’s disease is the most common cause of hypersecretion of... View Article
What triggers ACTH?
Secretion of ACTH from the pituitary gland is stimulated by corticotropin-releasing hormone (CRH), secreted by the hypothalamus. Also Check: How... View Article
What effect does ACTH have on the body?
ACTH is known as adrenocorticotropic hormone, which is released by the anterior pituitary. It stimulates the synthesis and secretion of... View Article
