Questions: Chemical digestion of carbohydrates begins in the by the enzyme known as Esophagus; salivary amyläse Mouth; salary amylase Stomach; pancreatic amylase Mouth; lingual amylase

The answer is the second one (B): Mouth; salivary amylase.

Explanation for each option:

1. Esophagus; salivary amylase: This is incorrect because the chemical digestion of carbohydrates does not begin in the esophagus. The esophagus is primarily a conduit for food to travel from the mouth to the stomach, and no significant chemical digestion occurs there.

2. Mouth; salivary amylase: This is correct. The chemical digestion of carbohydrates begins in the mouth, where the enzyme salivary amylase is secreted by the salivary glands. Salivary amylase starts breaking down starches into simpler sugars.

3. Stomach; pancreatic amylase: This is incorrect. While some carbohydrate digestion continues in the stomach, the enzyme pancreatic amylase is not active there. Pancreatic amylase is secreted by the pancreas and acts in the small intestine, not the stomach.

4. Mouth; lingual amylase: This is incorrect. While the mouth is the correct location, the enzyme responsible for the initial digestion of carbohydrates is salivary amylase, not lingual amylase. Lingual amylase is more involved in the digestion of lipids.

In summary, the chemical digestion of carbohydrates begins in the mouth with the enzyme salivary amylase.