Patients with the disease cystic fibrosis make mucus that is much stickier and thicker than usual....

Patients with the disease cystic fibrosis make mucus that is much stickier and thicker than usual. While the main effects are in the lungs, the mucus also blocks ducts in the pancreas and prevents the release of pancreatic enzymes.

If Peter had untreated cystic fibrosis, which event(s) above would be greatly decreased? Choose all that apply.

Peter took a bite of the bagel.

Gastric juices broke down the protein from the breakfast.

Nutrients from the latté were secreted into capillaries.

Peristaltic contractions in the stomach churn the food.

Nutrients from the cream cheese entered the lymphatic vessels.

Indigestible wastes passed through Peter’s rectum and anus.

Expert Solution

Here, the effect of Cystic fibrosis on Pancreatic secretions is being considered. Pancreatic secretions are composed of enzymes like amylase, peptidase, and lipase that help in the digestion of sugars, proteins, and fats respectively. This secretion enters the small intestine via the pancreatic duct.

If the secretion is prevented from entering, the enzymes can no longer act on the food items in the small intestine. As a result, the food is incompletely digested. The fats face the larger issue of remaining unbroken as sugars and proteins are already processed to a large extent in the stomach. The undigested fats then cannot be assimilated through the lymphatic vessels.

This will not hamper the churning of food in the stomach or the removal of the waste products.

Hence, of the given processes, the only process that will be hampered is d, where the cream cheese nutrients which are largely fats will fail to enter the lymphatic vessels.

gladiator answered 1 year ago

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