Digestive System and Respiration Review

Which phrase is an example of autotrophic nutrition?

• A snake eating a frog

• A tapeworm feeding in the body of a dog

• An orange tree making food

• A horse eating an apple

Which organism carries out heterotrophic nutrition?

• Frog

• Tree

• Flower

• Moss

All of the following are organs of the digestive system except...

• Stomach

• Small Intestine

• Mouth

• Lungs

Which is an example of chemical digestion?

• Enzymes breaking down starch into glucose.

• Chewing food

• Stomach chruning food

Where does mechanical digestion begin?

• Esophagus

• Stomach

• Mouth

• Small Intestine

Where does chemical digeston of carbohydrates like starch begin?

• Mouth

• Stomach

• Small Intestine

• Large Intestine

Where does chemical digestion of proteins begin?

• Mouth

• Stomach

• Large Intestine

• Small Intestine

Where are nutrients absorbed into the blood stream?

• Mouth

• Stomach

• Villi of Small Intestine

• Large Intestine

What is the function of the large intestine?

• Absorb nutrients

• Absorb salt

• Digest water

• Absorb water

The smooth muscle contraction that moves food down the esophagus and through the digestive system is known as...

• peristalsis

• diffusion

• active transport

• hydrolysis