BIO Exam 3 Review

Which of the following is not a function of the digestive system?

• Eliminate nitrogenous waste

• Ingests food

• Eliminate non-digestible food

• Breaks food down into absorbable nutrients

• Absorb nutrients

Humans are omnivores as shown by the type of

• Enzymes secreted in saliva

• Urine they produce

• Teeth they have

• Taste buds they have

• Enzymes secreted in the intestines

The first step of starch digestion is performed by

• The tongue mixing food with saliva

• Taste buds secreting pepsin

• Amylase in the saliva

• The tongue mixing food with saliva which contains amylase

• Glands in tongue secreting lipase

Which part of the digestive system both digests food and absorbs nutrients?

• Stomach

• Large intestine

• Small intestine

• Esophagus

• Pharynx

Tags

NGSS.HS-LS2-3

The chemical and mechanical processes of food breakdown are called:

• Digestion

• Absorption

• Secretion

• Ingestion

• None of the above

Tags

NGSS.HS-LS2-3

The absorptive effectiveness of the small intestine is enhanced by increasing the surface area of the mucosal lining. Which of the following accomplish this task?

• Intestinal villi

• Intestinal gap junctions

• Digestive enzymes

• The rugae

• None of the above

You have just eaten a meal high in complex carbohydrates. Which of the following enzymes will help to digest the meal starting in the mouth?

• Gastrin

• Amylase

• Cholecystokinin

• Trypsin

As the food in the stomach is repeatedly squeezed and mixed with gastric juice, it is converted into a creamy paste called:

• A bolus

• Chyme

• Feces

• Bilirubin

• None of the above

Heartburn results when ______ backs up into the esophagus

• Salivary amylase

• Bile

• Pancreatic juice

• Gastric juice

• Lipase

The vitamin that is required for the synthesis of visual pigments necessary for normal vision is

• Vitamin A

• Vitamin B

• Vitamin C

• Vitamin D

• Vitamin E