A secretion from the parotid and other mouth glands begins chemical digestion of cooked rice while food is chewed. Which enzyme is doing this work?

In the duodenum, a duct-delivered juice continues starch digestion after chyme leaves the stomach. Which enzyme acts on that carbohydrate?

A steak protein reaches a strongly acidic chamber where an enzyme cuts large polypeptides into shorter chains. Which enzyme performs that step?

In the small intestine, an activated enzyme cuts protein fragments into still smaller peptide pieces. Which enzyme is it?

After bile disperses fats in the small intestine, which enzyme chemically breaks triglycerides apart?

At the brush border, one enzyme finishes digestion of maltose from starch digestion. Which enzyme acts on maltose?

A student cannot digest the milk sugar in the intestinal lumen because the brush border lacks the needed enzyme. Which enzyme is missing?

Table sugar reaches the microvilli of the small intestine. Which enzyme splits that disaccharide for absorption?

A nucleic-acid-rich meal reaches the small intestine, where enzymes in duct-delivered juice digest DNA and RNA. Which enzyme group acts there?

Trypsin is released into the small intestine in digestive juice carried by a duct. Which organ secretes its inactive precursor?

Pepsin begins protein digestion after being released as an inactive precursor called pepsinogen. Which organ's lining secretes that precursor?

Which glands secrete the amylase that starts starch digestion before a bolus is swallowed?

A fat-digesting lipase reaches the duodenum through a duct, carried in bicarbonate-rich juice. Which organ secretes that enzyme?

Maltase is attached to the brush border where final carbohydrate digestion occurs. Which tissue secretes that enzyme?

Lactase works at the microvilli rather than in the stomach. Which structure produces it?

Sucrase completes digestion of table sugar at the intestinal surface. Which structure secretes sucrase?

A starch-digesting amylase is carried through a duct into the duodenum with bicarbonate-rich juice. Which organ secretes it?

Salivary amylase acts on starch while food is in the mouth. What main products does it begin forming?

Pepsin cuts dietary proteins before chyme enters the duodenum. What product does this leave for later enzymes?

Trypsin continues protein digestion in the small intestine. Which product does it generate from polypeptide chains?

Pancreatic lipase digests triglycerides after fat droplets are emulsified. Which products result?

Maltase acts on maltose at the intestinal brush border. What absorbable product is produced?

Lactase acts on lactose at the small-intestine brush border. Which products can then be absorbed?

Sucrase digests sucrose on the surface of the small intestine. Which products does it leave?

Pepsin begins cutting dietary protein while a meal is still in the stomach. Which condition does pepsin need to do this?

Pancreatic amylase reaches chyme after bicarbonate has neutralized stomach acid. Which condition supports its activity?

Salivary amylase begins working during chewing but is inactivated after the bolus mixes with stomach acid. Which condition favors it?

Trypsin forms from trypsinogen only after chyme enters the small intestine. Which condition allows this enzyme to work?

Pancreatic lipase reaches the duodenum along with bile after a fatty meal. Which condition helps this enzyme work efficiently on fat?

Brush-border enzymes such as maltase, lactase, and sucrase act on the microvilli. Which condition do they need?