Digestive System

Enzymes and acidic juices in the stomach, which break proteins down into smaller molecules, is known as

• circulation

• chemical digestion

• excretion

• mechanical digestion

The digestion of starch begins in the

• mouth

• stomach

• gall bladder

• small intestine

In humans, structures that absorb most of the products of digestion are the

• ducts of the pancreas

• cells of the esophagus

• muscular folds of the gallbladder

• villi of the small intestine

What occurs during the digestion of proteins?

• Specific enzymes break down proteins into amino acids.

• Specific hormones break down proteins into simple sugars.

• Specific hormones break down proteins into complex starches.

• Specific enzymes break down proteins into simple sugars.

The process of peristalsis is best described as the

• loss of water from vascular plants

• release of acid into the stomach

• chemical breakdown of food in the small intestine

• muscular contractions of the gastrointestinal tract

Choking on food is most likely caused by an interference with the proper functioning of the

• nasal cavity

• diaphragm

• epiglottis

• bronchial tubes

Extensive damage to the large intestine would have the greatest effect on

• glucose metabolism

• protein synthesis

• enzyme secretion

• water reabsorption

Where is bile produced?

• Liver

• Pancreas

• Stomach

• Small Intestine

Tags

NGSS.MS-LS1-7

What process moves food through the digestive system?

• Segmentation

• Peristalsis

• Ingestion

• Mastication

Which organ is the digestive system does not perform digestion?

• Stomach

• Large Intestine

• Small Intestine

• Esophagus