Digestion and Excretion Quiz

Answer 1

Sure! Here's a quiz on digestion and excretion. Feel free to answer the questions, and you can check your answers afterward.

Digestion and Excretion Quiz

Questions:

1. What is the primary function of the digestive system? a) To filter waste
   b) To break down food and absorb nutrients
   c) To transport oxygen
   d) To produce hormones

2. Which enzyme is primarily responsible for breaking down carbohydrates in the mouth? a) Lactase
   b) Pepsin
   c) Salivary amylase
   d) Lipase

3. What part of the digestive system is responsible for the majority of nutrient absorption? a) Stomach
   b) Large intestine
   c) Small intestine
   d) Esophagus

4. Where does digestion of proteins primarily occur? a) Mouth
   b) Stomach
   c) Small intestine
   d) Large intestine

5. Which organ is primarily responsible for detoxifying chemicals and metabolizing drugs? a) Kidney
   b) Liver
   c) Pancreas
   d) Gallbladder

6. What is the function of the kidneys in the excretory system? a) To absorb nutrients
   b) To filter blood and produce urine
   c) To store bile
   d) To produce hormones

7. Which structure connects the kidney to the bladder? a) Urethra
   b) Ureter
   c) Renal artery
   d) Renal vein

8. What is the main waste product excreted by the kidneys? a) Urea
   b) Glucose
   c) Protein
   d) Cholesterol

9. In which part of the digestive system does water absorption primarily take place? a) Small intestine
   b) Stomach
   c) Large intestine
   d) Pancreas

10. What role do villi play in the digestive system? a) They secrete enzymes
    b) They increase surface area for absorption
    c) They produce bile
    d) They transport waste

Answers:

1. b) To break down food and absorb nutrients
2. c) Salivary amylase
3. c) Small intestine
4. b) Stomach
5. b) Liver
6. b) To filter blood and produce urine
7. b) Ureter
8. a) Urea
9. c) Large intestine
10. b) They increase surface area for absorption

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