What to create	Exam
Which subject	Biology
What age group	Year or Grade 9
What topic	Human digestive system
Question types	Close-ended
Number of questions	10
Number of answers	4
Correct answers	Exactly 1
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Year 9 Biology Quiz: The Human Digestive System

Instructions:

Select the correct answer for each question. There is only one correct answer per question.

1. What is the primary function of the mouth in the human digestive system?

   • A. To absorb nutrients
   • B. To break down food mechanically and chemically
   • C. To store waste
   • D. To transport food to the stomach

2. Which enzyme is responsible for the digestion of carbohydrates in the mouth?

   • A. Lipase
   • B. Amylase
   • C. Pepsin
   • D. Lactase

3. What is the main role of the stomach in digestion?

   • A. Absorption of water
   • B. Storage of bile
   • C. Breakdown of proteins
   • D. Absorption of vitamins

4. Which part of the digestive system is primarily responsible for nutrient absorption?

   • A. Stomach
   • B. Small intestine
   • C. Large intestine
   • D. Esophagus

5. What is the function of bile in digestion?

   • A. To digest proteins
   • B. To emulsify fats
   • C. To absorb carbohydrates
   • D. To kill bacteria

6. Which organ produces enzymes that aid in digestion?

   • A. Stomach
   • B. Pancreas
   • C. Colon
   • D. Liver

7. What nutrient is primarily absorbed in the large intestine?

   • A. Proteins
   • B. Carbohydrates
   • C. Fats
   • D. Water

8. What condition can result from the improper functioning of the digestive system?

   • A. Diabetes
   • B. Constipation
   • C. Asthma
   • D. Hypertension

9. Which structure prevents food from entering the trachea during swallowing?

   • A. Uvula
   • B. Epiglottis
   • C. Larynx
   • D. Pharynx

10. What process allows for the movement of food through the digestive tract?

    • A. Peristalsis
    • B. Filtration
    • C. Diffusion
    • D. Absorption

Good luck!