How Much Do You Know About Digestion? Attempt This Quiz

Intestinal juice is a secretion produced by the small intestine and it contains various enzymes that help in the digestion of food. Lactase is an enzyme that breaks down lactose, a sugar found in milk and dairy products. Intestinal lipase is an enzyme that aids in the digestion of fats. Therefore, the statement that intestinal juice contains lactase and intestinal lipase is true.

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The churning action in the stomach is caused by the continual contractions and relaxations of the muscles in the stomach wall. These contractions and relaxations help to mix the food and digestive juices together, breaking down the food into smaller particles and aiding in the digestion process.

The second part of the small intestine is called the jejunum. It is located between the duodenum (the first part of the small intestine) and the ileum (the third part of the small intestine). The jejunum is responsible for the absorption of nutrients from digested food into the bloodstream. It has a larger diameter and more prominent blood vessels compared to the duodenum, allowing for increased absorption capacity.

Saliva is a slightly acidic substance with a pH level of around 6.7 to 7.4. This means that it is close to neutral on the pH scale, which ranges from 0 to 14. A pH level of 7 indicates neutrality, neither acidic nor alkaline. Saliva helps in the digestion process by breaking down food, and its pH level plays a role in maintaining a suitable environment for enzymes to function properly.

The maximum amount of food that the stomach can hold is 4 pounds.

The correct answer is "Pepsin enzyme, Renin enzyme". Gastric juice is made up of two enzymes, namely Pepsin and Renin.

The small intestine is the largest among the given options. It is a long, coiled tube that is around 20 feet in length and is responsible for the majority of nutrient absorption in the digestive system. It plays a crucial role in breaking down food and extracting essential nutrients for the body's functions. The large intestine, rectum, and stomach are all important organs in the digestive system, but they are comparatively smaller in size than the small intestine.

Digestion involves two processes: physical digestion and chemical digestion. Physical digestion refers to the mechanical breakdown of food into smaller pieces, such as chewing and churning in the stomach. Chemical digestion, on the other hand, involves the breakdown of food through the action of enzymes and other chemicals, such as in the stomach and small intestine. Therefore, the correct answer includes both "Physical, Chemical" and "Physical Digestion, Chemical Digestion".

The three end products of carbohydrate digestion are glucose, fructose, and galactose. These simple sugars are broken down from more complex carbohydrates during the process of digestion. Glucose is the most common and important simple sugar, as it is the primary source of energy for the body's cells. Fructose is commonly found in fruits and is also used as a sweetener in many processed foods. Galactose is less common and is typically found bound to glucose to form lactose, the sugar found in milk.