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Labeling Parts and Tissues of the Digestive System Quiz

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Which organ is responsible for the mechanical breakdown of food?

Mouth

Explanation

The mouth mechanically breaks down food through chewing and grinding.

Which enzyme is found in saliva and helps in the digestion of carbohydrates?

Amylase

Explanation

Amylase in saliva breaks down carbohydrates into simpler sugars during digestion.

Which structure connects the pharynx to the stomach?

Esophagus

Explanation

The esophagus connects the pharynx to the stomach for food passage.

Which structure prevents food from entering the trachea during swallowing?

Epiglottis

Explanation

The epiglottis prevents food from entering the trachea during swallowing.

Which part of the small intestine is primarily responsible for nutrient absorption?

Jejunum

Explanation

The jejunum is the main site for nutrient absorption in the small intestine.

Which tissue lines the inner surface of the stomach and secretes gastric juices?

Simple columnar epithelium

Explanation

Simple columnar epithelium lines the stomach and secretes gastric juices for digestion.

Which part of the large intestine is responsible for water absorption and formation of feces?

Colon

Explanation

The colon absorbs water and forms feces in the large intestine.

Which enzyme is responsible for the breakdown of proteins in the stomach?

Pepsin

Explanation

Pepsin is the enzyme that breaks down proteins in the stomach.

Which type of muscle is found in the walls of the digestive tract and is responsible for peristalsis?

Smooth muscle

Explanation

Smooth muscle in the digestive tract walls is responsible for peristalsis.

#10

Which enzyme is responsible for the breakdown of fats in the small intestine?

Lipase

Explanation

Lipase breaks down fats in the small intestine during digestion.

#11

Which accessory organ produces bile for emulsification of fats?

Liver

Explanation

The liver produces bile, which helps in the emulsification of fats during digestion.

#12

Which hormone stimulates the release of bile from the gallbladder?

Cholecystokinin

Explanation

Cholecystokinin stimulates the release of bile from the gallbladder.

#13

Which substance neutralizes acidic chyme as it enters the small intestine?

Pancreatic juice

Explanation

Pancreatic juice neutralizes acidic chyme in the small intestine.

#14

Which hormone stimulates the secretion of hydrochloric acid in the stomach?

Gastrin

Explanation

Gastrin stimulates the secretion of hydrochloric acid in the stomach.

#15

Which enzyme converts pepsinogen into its active form, pepsin, in the stomach?

Hydrochloric acid

Explanation

Hydrochloric acid converts pepsinogen into active pepsin in the stomach.

#16

Which cell type in the gastric glands is responsible for the secretion of hydrochloric acid?

Parietal cells

Explanation

Parietal cells in gastric glands secrete hydrochloric acid.

Labeling Parts and Tissues of the Digestive System Quiz

Which organ is responsible for the mechanical breakdown of food?

Which enzyme is found in saliva and helps in the digestion of carbohydrates?

Which structure connects the pharynx to the stomach?

Which structure prevents food from entering the trachea during swallowing?

Which part of the small intestine is primarily responsible for nutrient absorption?

Which tissue lines the inner surface of the stomach and secretes gastric juices?

Which part of the large intestine is responsible for water absorption and formation of feces?

Which enzyme is responsible for the breakdown of proteins in the stomach?

Which type of muscle is found in the walls of the digestive tract and is responsible for peristalsis?

Which enzyme is responsible for the breakdown of fats in the small intestine?

Which accessory organ produces bile for emulsification of fats?

Which hormone stimulates the release of bile from the gallbladder?

Which substance neutralizes acidic chyme as it enters the small intestine?

Which hormone stimulates the secretion of hydrochloric acid in the stomach?

Which enzyme converts pepsinogen into its active form, pepsin, in the stomach?

Which cell type in the gastric glands is responsible for the secretion of hydrochloric acid?

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