Quiz on Human Digestion

Which of the following is the first step in the process of nutrition?

• Assimilation

• Absorption

• Ingestion

• Egestion

What is the name of the digestive juice secreted by the liver?

• Pepsin

• Bile

• Trypsin

• Saliva

In which part of the digestive system does digestion begin?

• Stomach

• Small intestine

• Large intestine

• Mouth

Which of the following is not a part of the human digestive system?

• Esophagus

• Pancreas

• Lungs

• Small intestine

The finger-like projections present in the small intestine that increase the surface area for absorption are called:

• Cilia

• Villi

• Alveoli

• Papillae

What is the function of bile juice in digestion?

• Digests proteins

• Breaks down starch

• Emulsifies fats

• Absorbs nutrients

Which enzyme is present in saliva and helps in the digestion of starch?

• Pepsin

• Trypsin

• Amylase

• Lipase

The acid present in the stomach that helps in digestion is:

• Acetic acid

• Hydrochloric acid

• Sulfuric acid

• Nitric acid

The process of taking in food is called:

• Assimilation

• Ingestion

• Digestion

• Egestion

Which organ stores bile juice before releasing it into the small intestine?

• Liver

• Stomach

• Pancreas

• Gallbladder