Digestión

The video explains the digestion process in vertebrates, starting with chewing and saliva action in the mouth, continuing through the digestive tract with the help of enzymes. It contrasts this with the simpler ingestion and digestion process in single-celled organisms.

What is the primary purpose of breaking down complex chemicals in vertebrates?

• To eliminate them from the body

• To absorb and use them in metabolism

• To make them taste better

• To store them for later use

Which part of the digestive process involves the action of saliva?

• Stomach

• Esophagus

• Mouth

• Intestines

What role do enzymes play in the digestive process of vertebrates?

• They help break down food into simpler chemicals

• They speed up the absorption of nutrients

• They store energy for later use

• They eliminate waste from the body

How does the digestive process in single-celled organisms differ from that in vertebrates?

• They have a complex digestive tract

• They rely on external enzymes

• They only ingest and digest food

• They use teeth to chew food

What is a key difference between vertebrate and single-celled organism digestion?

• Single-celled organisms have a digestive tract

• Single-celled organisms use saliva

• Vertebrates chew food, single-celled organisms do not

• Vertebrates do not use enzymes