2nd Year Biology Chapter 1 Test01. Digestive System of Man

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. Which structure prevents food from entering the trachea during swallowing?
   1. Epiglottis
   2. Soft palate
   3. Tongue
   4. Uvula
2. Which juice secreted by the alimentary canal plays an important role in the digestion of fats?
   1. pancreatic juice, saliva
   2. mucus, hydrochloric acid
   3. saliva, hydrochloric acid
   4. bile juice, pancreatic juice
3. Secretin and cholecystokinin are secreted in
   1. pyloric region
   2. ileum
   3. esophagus
   4. duodenum
4. Which vitamin is stored in the liver?
   1. Vitamin A
   2. Vitamin B12
   3. Vitamin D
   4. All of these
5. The removal of the appendix is called:
   1. Appendicitis
   2. Appendectomy
   3. Peritonitis
   4. Gastrectomy
6. Which enzyme precursor is secreted by chief (zymogenic) cells?
   1. Amylase
   2. Lipase
   3. Pepsinogen
   4. Trypsinogen
7. The liver processes blood and makes substances that are:
   1. Toxic
   2. Non-toxic and useful
   3. Stored only in the stomach
   4. Carried only to the kidneys
8. Which structure does the appendix come off?
   1. transverse colon
   2. descending colon
   3. ascending colon
   4. small intestine
9. Food is propelled through the esophagus to the stomach by:
   1. Digestion
   2. Peristalsis
   3. Respiration
   4. Relaxation
10. Where does the pancreatic duct directly join to?
    1. jejunum
    2. duodenum
    3. ileum
    4. liver