Exploring the Digestive System Process

How much food does an average human consume daily?

• Between 1 and 2.7 kilograms

• Between 2 and 5 kilograms

• More than 3 kilograms

• Less than 1 kilogram

What is the total internal surface area of the gastrointestinal tract?

• 30 to 40 square meters

• 20 to 30 square meters

• 40 to 50 square meters

• 10 to 20 square meters

Which organ is not part of the trio that helps break down food?

• Pancreas

• Heart

• Liver

• Gallbladder

What is the role of saliva in digestion?

• Breaks down proteins

• Dissolves fats

• Breaks down starch

• Absorbs nutrients

Tags

NGSS.MS-LS1-7

What muscular action moves food down the esophagus?

• Contraction

• Churning

• Peristalsis

• Segmentation

What triggers the release of digestive juices in the stomach?

• Physical presence of food

• Enzymatic signals

• Nervous impulses

• Hormones from the stomach lining

What is the semi-liquid mixture formed in the stomach called?

• Chyme

• Bolus

• Blend

• Juice

Where does the final breakdown of proteins and carbohydrates occur?

• Stomach

• Liver

• Large intestine

• Small intestine

What is the function of villi in the small intestine?

• Filter waste

• Secrete digestive enzymes

• Absorb nutrients

• Produce bile

What is the final by-product of digestion called before it is expelled?

• Chyme

• Stool

• Bile

• Waste