Question 1:
What is the primary function of the digestive system?
Explanation: The correct answer is A) Absorbing nutrients. The primary function of the digestive system is to break down food into smaller molecules and absorb nutrients from those molecules. It involves the mechanical and chemical digestion of food in various organs such as the mouth, stomach, and small intestine.
Question 2:
Which of the following is responsible for producing digestive enzymes?
Explanation: The correct answer is C) Pancreas. The pancreas is responsible for producing digestive enzymes. These enzymes are released into the small intestine to help break down carbohydrates, proteins, and fats into smaller molecules that can be absorbed by the body.
Question 3:
Where does the majority of nutrient absorption occur in the digestive system?
Explanation: The correct answer is C) Small intestine. The majority of nutrient absorption occurs in the small intestine. The inner lining of the small intestine has numerous finger-like projections called villi, which increase the surface area for absorption. Nutrients such as glucose, amino acids, and fatty acids are absorbed into the bloodstream through the villi.
Question 4:
Which of the following organs produces bile?
Explanation: The correct answer is A) Liver. The liver produces bile, which is stored and concentrated in the gallbladder. Bile plays a crucial role in the digestion and absorption of fats. It helps emulsify fat droplets into smaller particles, increasing their surface area for enzymatic digestion in the small intestine.
Question 5:
Which part of the digestive system is responsible for storing undigested waste material?
Explanation: The correct answer is D) Large intestine. The large intestine, specifically the colon, is responsible for storing undigested waste material until it is eliminated from the body as feces. The large intestine also absorbs water and electrolytes from the waste material, helping to form solid stools.
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