Exam 3: Digestion: From Meals to Molecules

The ____ system aids the digestive system by secreting hormones which regulate how much we eat and how quickly food and nutrients travel through the digestive system.

Which of the following is digested before being absorbed?

Which of the following is NOT an end result of chemical digestion?

Describe how food moves from the esophagus into the stomach.

Nutrients are used for energy or to synthesize substances in the body after they are absorbed.

The smallest units of life are

Cellular respiration occurs in the ___ of the cell.

Jasmine has gallstones and experiences severe pain when she eats. What substance should she avoid to try to reduce the pain she is experiencing?

Food allergies have their origins in the GI tract.

The transport of substances across a cell membrane with the aid of a carrier molecule and the expenditure of energy is

Substances absorbed into the lymphatic system do not pass through the liver before entering the general blood circulation.

Diffusion is the net movement of substances from an area of concentration to an area of___ concentration.

The intestinal microflora synthesize small amounts of vitamin D.

A Helicobacter pylori infection can cause

Enzymes are substrate specific, meaning that lipases will only digest lipids.

The pancreas is part of the endocrine system and also part of the digestive system.

A _____ meal stays in the stomach the longest.

Which of the following is NOT a common food allergen?

What might occur if the sphincter denoted here doesn't close correctly, and some of the contents from the stomach enter into the esophagus?

The hepatic portal circulation delivers nutrients from the lacteals to the liver.