Enzymes and Digestion Quiz
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A positive result for a biochemical test for protein 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
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
The type of enzyme responsible for the digestion of carbohydrates is:
A. Carbohydrases
B. Lipases
C. Proteases
D. Peptidases
Where is bile produced and stored in the body?
A. Produced and stored in the gall bladder
B. Produced in the stomach and stored in the liver
C. Produced in the liver and stored in the gall bladder
D. Produced and stored in the pancreas
The enzyme responsible for the initial breakdown of starch in the mouth is:
A. Amylase
B. Maltase
C. Lipase
D. Pepsin
The enzyme pepsin is produced in the:
A. Small intestine
B. Large intestine
C. Stomach
D. Pancreas
What is the function of bile in the digestive system?
A. Break down carbohydrates to simple sugars
B. Neutralize hydrochloric acid from the stomach
C. Emulsify fat to increase surface area for digestion
D. Break down proteins to amino acids
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
The main region for the digestion of starch is:
A. Mouth
B. Stomach
C. Large intestine
D. Small intestine
Where is lipase produced?
A. Liver
B. Small intestine
C. Gall bladder
D. Pancreas
Lipid digestion occurs in:
A. Pancreas
B. Small intestine
C. Liver
D. Stomach
What do digestive enzymes convert food into?
A. Large insoluble molecules
B. Small soluble molecules
C. Gases for respiration
D. Minerals for absorption
Where is bile produced and stored in the body?
A. Produced in the liver and stored in the gall bladder
B. Produced and stored in the gall bladder
C. Produced in the stomach and stored in the liver
D. Produced and stored in the pancreas
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
What is the role of lipases in the digestive system?
A. Break down carbohydrates to simple sugars
B. Neutralize hydrochloric acid from the stomach
C. Break down lipids to glycerol and fatty acids
D. Break down proteins to amino acids
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
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 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
The purpose of the two-stage process of protein digestion is:
A. To break down large protein molecules into smaller polypeptides and then into amino acids
B. To activate the protease enzymes
C. To neutralize the acidic chyme
D. To emulsify the lipids
The enzyme responsible for the initial breakdown of proteins in the stomach is:
A. Trypsin
B. Pepsin
C. Amylase
D. Lipase
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 true statement about the digestion of lipids is:
A. Lipids do not need to be digested and can be absorbed directly.
B. Lipase is produced in the stomach and works at an acidic pH.
C. Bile emulsifies lipids
D. Fatty acids and glycerol are absorbed directly into the blood.
What is the function of amylase in the digestive system?
A. Break down lipids to glycerol and fatty acids
B. Break down starch to simple sugars
C. Neutralize hydrochloric acid from the stomach
D. Break down proteins to amino acids
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 end product of the digestion of starch is:
A. Glycerol
B. Glucose
C. Fatty acids
D. Amino acids
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