Digestive System Pre-Test 2023

The involuntary constriction and relaxation of muscles that push food through the digestive system is called _______.

• Chyme

• Chemical Digestion

• Mechanical digestion

• Peristalsis

Food does not pass through this type of organ. They are known as _______.

• Chyme

• Main/Primary Organs

• Accessory Organs

• Peristalsis

Hydrochloric acid breaking down food in the stomach is considered _______.

• Chyme

• Peristalsis

• Chemical Digestion

• Mechanical Digestion

A soup-like substance that is created in the stomach by the breaking down of food with stomach acid is called _______. This is later slowly released into the small intestine.

• Chyme

• Bacteria

• Peristalsis

• Bile

Chewing is an example of this type of digestion.

• Mechanical Digestion

• Chemical Digestion

• Peristalsis

• Chyme

Which part of the human digestive system removes water from undigested materials and helps absorb any leftover nutrients before waste is sent to the rectum?

• Large intestine

• Esophagus

• Stomach

• Liver

One day in class, Christy ate some crackers. She noted that the crackers began to break down as she chewed. Which statement explains why this happened?

• Digestion begins in the mouth

• Taste buds help break down food

• Teeth do not help with digestion

• Digestion begins in the esophagus

As food passes through your digestive tract, its breakdown into smaller molecules is aided by

• Chemicals called enzymes

• Carbohydrates and proteins

• Chemicals called neurotransmitters

• The villi in the small intestine

Which of the four processes of digestion is defined as the removal of waste?

• Ingestion

• Digestion

• Absorption

• Egestion

Which of the four processes is defined as the taking in of nutrients by the bloodstream?

• Ingestion

• Digestion

• Absorption

• Egestion