Question

2

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OSTOP
Teeth are part of the skeletal system, but they are also part of the digestive system. Why are they part of the digestive
system?
A They start mechanical digestion.
B
They release enzymes in the saliva.
They play a role in chemical digestion.
D They begin the breakdown of carbohydrates into simple sugars.

Answer 1

Teeth play a dual role in the digestive system - they aid in mechanical digestion and initiate chemical digestion through the release of enzymes.

Step-by-step explanation:

Teeth are indeed part of the digestive system because they play a crucial role in the process of digestion. While the main functions of teeth are related to mechanical digestion, such as biting, chewing, and grinding food into smaller pieces for easier swallowing, they also contribute to chemical digestion.

One way teeth are involved in chemical digestion is through the release of enzymes in the saliva. Saliva contains amylase, an enzyme that helps break down carbohydrates into simple sugars, thereby initiating the breakdown of carbohydrates. This process is important for the body to properly utilize the energy from carbohydrates.

Therefore, teeth not only facilitate mechanical digestion but also kickstart the chemical digestion of carbohydrates, demonstrating their essential role in the digestive system.

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