Exam 40: Digestion and Absorption

Diarrhea occurs when the contents of the lower colon and rectum move at a rate that is slower than normal.

The process of elimination is simply the expulsion of the residues of digestion from the digestive tract.

Which of these is not an example of mechanical digestion?

Lactose and maltose are examples of disaccharides.

Match each structure with its function, description, or the enzyme it produces. -Organ in which pepsinogen is made

Pancreatic juice contains all of the following substances except:

The hormones GIP, secretin, and CCK are formed in the intestinal mucosa.

What is found in the secretions of the salivary glands? Why is the lipase found in saliva ineffective as a digestive enzyme in the mouth?

Which of the following is not a property of enzymes?

Carbohydrates that are used for food are made up of one or more saccharide groups.

The disaccharide lactose is made up of which two saccharide units?

The most important function of the digestive system is:

Both simple sugars and amino acids are absorbed into the blood in the intestinal capillaries.

Nucleotidase digests nucleotides.

Of the four types of protein-digesting enzymes made by the body, only one is made by the small intestines.

Although we eat six types of chemical substances (carbohydrates, proteins, fats, vitamins, mineral salts, and water), only carbohydrates, proteins, fats, and vitamins need to be digested.

Saliva contains all of the following substances except:

Segmentation is described as a wavelike muscle contraction in a hollow organ that moves food through the digestive system.

An end product of the action of the enzyme phospholipase is:

Mechanical digestion pushes food against the wall of the small intestine so it can be absorbed.