BIOLOGY QUIZ on Chapter 30 "Digestive & Excretory Systems"

Digestion starts when you place the food in your mouth and start chewing. Once the food is chewed into a paste and you swallow it will enter the_____________.

• Small intestines

• Lungs

• Esophagus

• Trachea

Tags

NGSS.MS-LS1-7

The acid in our stomach is powerful enough to break down metals like aluminum, how does our stomach protect itself from the acid within it?

• our stomachs are coated with a layer of mucus that protects its from the acid

• our stomachs are made of a special tissue that is resistant to acid

• our stomachs regenerate faster than the acids ability to break down tissue

• because it the stomach is basic

What is the last section of the digestive system, where water is absorbed from food and the remaining material is eliminated from the body?

• Large Intestine

• Small Intestine

• Appendix

• Pharynx

What is the J shaped muscular sac-like organ that food enters from the esophagus?

• Tongue

• Pancreas

• Stomach

• Gallbladder

When food is chewed, mixed, and churned __________ digestion is taking place.

• Chemical

• Mental

• Emotional

• Mechanical

What is the muscular tube that moves food from the mouth to the stomach?

• Uvula

• Esophagus

• Palate

• Salivary glands

When food is broken down by enzymes or acid, __________ digestion is taking place.

• Chemical

• Mental

• Emotional

• Mechanical

Tags

NGSS.MS-LS1-7

The __________ is where digestion begins.

• Stomach

• Small Inestine

• Mouth

• Liver

The liver produces:

• bile

• ptyalin

• hydrochloric acid

A fluid in the mouth that helps digest food.

• pepsin
• pepsi
• saliva
• salty