Exam 40: Digestion and Absorption

The stomach releases gastric inhibitory peptide to slow down peristalsis in the duodenum.

The enzyme amylase is produced by the:

Explain the process of protein digestion.

Which of the following is not a stage in deglutition?

Match each primary mechanism of the digestive system with its corresponding definition. -Movement of digested nutrients through the GI mucosa and into the internal environment

Bicarbonates are useful in the GI tract to:

Bile contains all of the following substances except:

Intestinal motility includes both peristaltic contractions and segmentation.

During deglutition, food is denied entry to the larynx by muscle action that causes the epiglottis to block that opening.

Hydrolysis refers to:

The amount of fat being absorbed by the body can be determined by taking a blood sample from the hepatic portal system.

Lysophosphatide is a possible end product of fat digestion.

Which of the following is not true of segmentation?

Match each primary mechanism of the digestive system with its corresponding definition. -Excretion of the residues of the digestive process (feces) from the rectum, through the anus; defecation

The enzyme amylase functions best in a _____ pH.

Retropulsion forces the chyme in the stomach to move backwards.

Structurally, enzymes are:

List the kinds of chemical substances that we eat. Which of these need to be digested?

Vasoactive intestinal peptide inhibits the production of intestinal juice.

Most digestive enzymes are synthesized and secreted as inactive proenzymes.