Digestive System

Food is (a)   to our body.

Tags

NGSS.MS-LS1-7

What do the chemicals in our food combine with inside our bodies to produce the fuel we need?

• Potassium

• Hydrogen

• Ketchup

• Oxygen

Tags

NGSS.MS-LS1-7

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, What organ does the food travel down first?

• Medulla Oblongata

• Lungs

• Esophagus

• Trachea

Why do the muscles in your stomach contract when you are hungry?

• To remind us to eat.

• To digest the remaining food left in our stomach.

• To embarrass us on a date.

• It is a physiological response to the mastication of food in the oral cavity.

What kind of acid is inside our stomachs?

• sulphuric acid

• hydrochloric acid

• angelic acid

• temporal acid

Tags

NGSS.MS-PS1-2

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 I said so

The lining of our stomach is covered in mucus to protect it from acid but the lining itself also replaces itself rapidly. How often do we grow a new stomach lining?

• every 3 hours

• every 3 weeks

• every 3 days

• 3 times a year

Tags

NGSS.HS-LS1-4