Carbohydrate Digestion and Functions

The video explains carbohydrate digestion, starting in the mouth with salivary amylase breaking down polysaccharides. In the stomach, digestion pauses due to acidic conditions. In the duodenum, pancreatic amylase continues the breakdown, aided by brush border enzymes, converting disaccharides to monosaccharides. These are absorbed by the liver and used for energy or cellular functions.

What are carbohydrates primarily composed of?

• Vitamins

• Proteins

• Fats

• Sugars

Which enzyme initiates the digestion of carbohydrates in the mouth?

• Lactase

• Salivary amylase

• Sucrase

• Pancreatic amylase

Why does no chemical carbohydrate digestion occur in the stomach?

• High temperature

• Absence of carbohydrates

• Presence of acid

• Lack of enzymes

What triggers the release of pancreatic amylase?

• Presence of proteins

• Presence of fats

• Presence of carbohydrates in chyme

• Presence of vitamins

Which hormone signals the pancreas to release pancreatic amylase?

• Gastrin

• Cholecystokinin (CCK)

• Glucagon

• Insulin

Which enzyme breaks down lactose in the small intestine?

• Amylase

• Sucrase

• Lactase

• Maltase

What are the end products of carbohydrate digestion?

• Proteins

• Polysaccharides

• Disaccharides

• Monosaccharides

Where are monosaccharides absorbed in the body?

• Pancreas

• Stomach

• Liver

• Large intestine

What is the primary use of monosaccharides in the body?

• Building proteins

• Forming vitamins

• Storing fats

• Providing energy

Which of the following is not a function of monosaccharides?

• Energy production

• Building new cell parts

• Muscle contraction

• Breaking down proteins