AP Digestive System

What substance emulsifies fats?

• lipase
• bile
• pepsin
• amylase

What substance activates pepsinogen?

• food
• bicarbonate ion
• hydrochloric acid
• pepsin

What organ secretes the most digestive enzyme?

• pancreas
• salivary glands
• stomach
• liver

Where does chemical digestion of carbohydrates begin?

• small intestine
• stomach
• mouth
• large intestine

Tags

NGSS.MS-LS1-7

What is the stimulus for secretin to be released?

• food in the stomach
• fats and proteins in the chyme
• bicarbonate in the small intestine
• acid in the small intestine

What substance is released when blood glucose levels are high?

• insulin
• glycogen
• glucagon
• glycerol

Tags

NGSS.HS-LS1-3

The Beta cells of the pancreas secrete what substance?

• glycogen

• glucagon

• insulin

• glycerol

Tags

NGSS.HS-LS1-3

What pH value would be optimal for the functioning of pepsin?

• 1
• 4
• 7
• 10

Where is gastrin secreted?

• stomach
• small intestine
• large intestine
• mouth

What is the order of the small intestine, starting from the stomach?

• jejunum, ileum, duodenum
• duodenum, jejunum, ileum
• ileum, jejunum, duodenum
• duodenum, ileum, jejunum