Which organ is responsible for producing bile?
A) Stomach
B) Pancreas
C) Liver
D) Small intestine
Which enzyme breaks down starch into maltose?
A) Pepsin
B) Amylase
C) Lipase
D) Trypsin
Where does most nutrient absorption occur in the digestive system?
A) Stomach
B) Large intestine
C) Small intestine
D) Esophagus
Which organ stores and concentrates bile?
A) Liver
B) Stomach
C) Pancreas
D) Gallbladder
Which nutrient is the main source of energy for the body?
A) Proteins
B) Carbohydrates
C) Fats
D) Vitamins
Which enzyme is responsible for breaking down proteins in the stomach?
A) Pepsin
B) Lipase
C) Amylase
D) Trypsin
What is the function of villi in the small intestine?
A) Secretes digestive enzymes
B) Increases surface area for absorption
C) Produces bile
D) Stores food
Which part of the digestive system prevents food from entering the windpipe?
A) Esophagus
B) Epiglottis
C) Trachea
D) Pharynx
Which of the following is a water-soluble vitamin?
A) Vitamin A
B) Vitamin D
C) Vitamin C
D) Vitamin K
Where does protein digestion begin?
A) Mouth
B) Stomach
C) Small intestine
D) Large intestine
Which macronutrient provides the most energy per gram?
A) Carbohydrates
B) Proteins
C) Fats
D) Vitamins
Which mineral is essential for strong bones and teeth?
A) Iron
B) Calcium
C) Sodium
D) Magnesium
Which organ produces insulin?
A) Liver
B) Pancreas
C) Stomach
D) Kidney
What is the primary function of fiber in the diet?
A) Provides energy
B) Builds muscles
C) Aids digestion
D) Increases fat storage
Which part of the digestive system is responsible for water absorption?
A) Stomach
B) Small intestine
C) Large intestine
D) Liver
Which vitamin is produced in the human body when exposed to sunlight?
A) Vitamin A
B) Vitamin B12
C) Vitamin C
D) Vitamin D
Which type of carbohydrate is indigestible by humans?
A) Starch
B) Fiber
C) Glucose
D) Glycogen
Which enzyme is secreted by the pancreas to digest fats?
A) Amylase
B) Pepsin
C) Lipase
D) Trypsin
What is the primary function of the stomach?
A) Absorb nutrients
B) Store bile
C) Break down food using acid and enzymes
D) Transport food to the intestines
Which nutrient helps in oxygen transport in the blood?
A) Calcium
B) Iron
C) Potassium
D) Zinc
Which part of the digestive system is responsible for mechanical digestion in the mouth?
A) Saliva
B) Tongue
C) Teeth
D) Epiglottis
Which hormone stimulates the release of gastric juices?
A) Insulin
B) Gastrin
C) Glucagon
D) Secretin
Which vitamin is essential for blood clotting?
A) Vitamin A
B) Vitamin B12
C) Vitamin K
D) Vitamin C
Which type of fat is considered the healthiest?
A) Trans fat
B) Saturated fat
C) Unsaturated fat
D) Cholesterol
What is the primary function of the esophagus?
A) Produces digestive enzymes
B) Breaks down proteins
C) Transports food to the stomach
D) Absorbs nutrients
Which component of food is necessary for muscle growth and repair?
A) Carbohydrates
B) Proteins
C) Fats
D) Vitamins
Which digestive organ is responsible for producing most digestive enzymes?
A) Stomach
B) Pancreas
C) Liver
D) Large intestine
Which vitamin is essential for vision and a healthy immune system?
A) Vitamin A
B) Vitamin B6
C) Vitamin C
D) Vitamin E
Which part of the digestive system is also known as the “colon”?
A) Stomach
B) Small intestine
C) Large intestine
D) Esophagus
Which mineral helps regulate fluid balance and nerve function?
A) Iron
B) Calcium
C) Sodium
D) Magnesium
