Enzymes and Digestion Quiz
Preview:
The type of enzyme responsible for the digestion of carbohydrates is:
A. Carbohydrases
B. Lipases
C. Proteases
D. Peptidases
What is the role of lipases in the digestive system?
A. Break down lipids to glycerol and fatty acids
B. Break down proteins to amino acids
C. Break down carbohydrates to simple sugars
D. Neutralize hydrochloric acid from the stomach
What is the purpose of the ‘lock and key theory’ in explaining enzyme action?
A. To demonstrate the role of amylase in starch digestion
B. To illustrate the breakdown of lipids by lipases
C. To explain the production of bile in the liver
D. To describe the shape of enzyme molecules
The location where amino acids from protein digestion are absorbed into the body is:
A. Stomach
B. Small intestine
C. Large intestine
D. Liver
The main purpose of the digestive process is:
A. To break down large, insoluble food molecules into smaller, simpler molecules.
B. To convert food into energy.
C. To remove waste products from the body.
D. To absorb food into the blood stream
What do digestive enzymes convert food into?
A. Large insoluble molecules
B. Small soluble molecules
C. Gases for respiration
D. Minerals for absorption
A positive result for a biochemical test for glucose would be:
A. Add iodine, yellow solution
B. Add biuret, purple solution
C. Add iodine, blue / black solution
D. Add benedict’s, brick red solution
What is the function of lipids in the body?
A. To neutralize hydrochloric acid from the stomach
B. To provide energy for cellular activities
C. To break down proteins to amino acids
D. To build new carbohydrates
The enzyme responsible for the initial breakdown of proteins in the stomach is:
A. Trypsin
B. Pepsin
C. Amylase
D. Lipase
The enzyme pepsin is produced in the:
A. Small intestine
B. Large intestine
C. Stomach
D. Pancreas
Where fatty acids and glycerol get absorbed after the digestion of lipids is:
A. Blood capillaries in the villi
B. Lacteal in the villi
C. Stomach
D. Liver
A positive result for a biochemical test for starch would be:
A. Add iodine, yellow solution
B. Add biuret, purple solution
C. Add iodine, blue / black solution
D. Add benedict’s, brick red solution
What is the function of amylase in the digestive system?
A. Neutralize hydrochloric acid from the stomach
B. Break down starch to simple sugars
C. Break down lipids to glycerol and fatty acids
D. Break down proteins to amino acids
What is the function of bile in the digestive system?
A. Emulsify fat to increase surface area for digestion
B. Neutralize hydrochloric acid from the stomach
C. Break down proteins to amino acids
D. Break down carbohydrates to simple sugars
The enzyme responsible for the initial breakdown of starch in the mouth is:
A. Amylase
B. Maltase
C. Lipase
D. Pepsin