Digestion and Absorption Solved MCQs.

Digestion and Absorption MCQs multiple-choice Questions with Answers

1. Which of the following cells secrete enamel of tooth?
a. Ameloblast
b. Odontoblast
c. Osteoblast
d. Osteoclast
Answer: a. Ameloblast

2. What is secreted by parietal cells (oxyntic cells) of the stomach?
a. Mucin
b. Pepsin
c. HCl
d. H2SO4
Answer: c. HCl

3. What are the movements called that move food through the digestive tract?

a. Antiparistalsis
b. Peristalsis
c. Glottis
d. Bolus
Answer: b. Peristalsis

4. What is the opening of the windpipe or trachea called?
a. Epiglottis
b. Palate
c. Bolus
d. Glottis
Answer: d. Glottis

5. Which of the following glands are located below the tongue?
a. Submaxillary glands
b. Sublingual glands
c. Parotid glands
d. Ptyalin
Answer: b. Sublingual glands

6. Which of the following is a function of the gall bladder?
a. Deamination
b. Bile storage
c. Synthesis of plasma protein
d. Storage of fat-soluble vitamins
Answer: b. Bile storage

7. What is secreted by the intestinal glands of Crypts of Lieberkuhn?
a. Glucagon
b. Success entericus
c. Insulin
d. Saliva
Answer: b. Success entericus

8. What substrate does amylase act on?
a. Starch
b. Protein
c. Fat
d. Sugar cane
Answer: a. Starch

9. The Invertase is an enzyme that catalyzes the hydrolysis of:
a. Glucose into sucrose and zymase
b. Sucrose into glucose and fructose
c. Starch to maltose
d. Starch into sucrose
Answer: b. Sucrose into glucose and fructose

10. About what percentage of amino acids is absorbed in the small intestine?
a. 90-95%
b. 100%
c. Only 10%
d. 10-50%
Answer: a. 90-95%

11. Canine teeth are present in rabbits because it is…?
a. Herbivorous
b. Carnivorous
c. Omnivorous
d. Sporophytic
Answer: a. Herbivorous

12. What is the main function of the large intestine in humans?
a. Extraction of Alcohol
b. Absorption of water and salts
c. Storage of waste matter only
d. Absorption of fats
Answer: b. Absorption of water and salts

13. What is the space between the gums and the lips called?
a. Uvula
b. Epiglottis
c. Vestibule
d. Sulcus terminalis
Answer: c. Vestibule

14. The small intestine consists of three parts, the first part is known as…?

a. Oesophagus
b. Duodenum
c. Vestibule
d. Larynx
Answer: b. Duodenum

15. Which of the following is a characteristic feature of epithelial cells of the intestine?
a. Epiglottis
b. Pilus
c. Microvilli
d. Bolus
Answer: c. Microvilli

16. A dental disease characterized by mottling of teeth is due to the excess of a certain chemical. Do you know the name of that chemical?
a. Chlorine
b. Sodium
c. Fluorine
d. Boron
Answer: c. Fluorine

17. What is the deficiency disease caused by protein?
a. Scurvy
b. Kwashiorkor
c. Addison’s disease
d. Anaemia
Answer: b. Kwashiorkor

18. Chymosin is one of the main enzymes responsible for coagulation; it is also known as…?
a. Amylase
b. Rennin
c. Lipase
d. Trypsin
Answer: b. Rennin

19. Where in human lacteals are found in?
a. Liver
b. Lungs
c. Oesophagus
d. Ileum
Answer: d. Ileum

20. Which vitamin deficiency can cause nyctalopia?
a. Vitamin A
b. Vitamin D
c. Vitamin K
d. Vitamin B12
Answer: a. Vitamin A

21. Which of the following hormone stimulates the stomach to secrete gastric juice?
a. Enterokinase
b. Gastrin
c. Rennin
d. Digestin
Answer: b. Gastrin

22. The enzyme enterokinase helps in the conversion of…?
a. Proteins into polypeptide
b. Trypsinogen into trypsin
c. Pepsinogen into pepsin
d. Lactose to Sucrose
Answer: b. Trypsinogen into trypsin

23. What is the enzyme produced in the small intestine that breaks down lactose?
a. Lipase
b. Pepsin
c. Amylase
d. Lactase
Answer: d. Lactase

24. Where does most of the digestive process take place?
a. Small intestine
b. Large intestine
c. Stomach
d. All of these
Answer: a. Small intestine

25. What is the best way to maintain intestinal health?
a. Eat a high-fibre diet
b. Eat a high-fat diet
c. Eat foods high in refined sugars
d. Eat processed foods only
Answer: a. Eat a high-fibre diet