Digestion and absorption, BMR, nutritional disorders - Question Bank

1. The hormone that regulates blood glucose levels by promoting glucose uptake by cells is:
A) Glucagon
B) Epinephrine
C) Insulin
D) Cortisol
2. Which of the following is a disorder caused by excessive secretion of growth hormone in adults?
A) Dwarfism
B) Gigantism
C) Acromegaly
D) Cretinism
3. The enzyme responsible for the initial digestion of starch in the mouth is:
A) Sucrase
B) Maltase
C) Salivary amylase
D) Lactase
4. Which mineral is essential for the formation of hemoglobin and is a component of myoglobin?
A) Zinc
B) Copper
C) Iron
D) Manganese
5. The absorption of most digested food products occurs in the:
A) Stomach
B) Small intestine
C) Large intestine
D) Esophagus
6. Beriberi, a disease caused by thiamine (Vitamin B1) deficiency, primarily affects the:
A) Skin
B) Bones
C) Nervous system and cardiovascular system
D) Digestive system
7. The primary role of the pancreas in digestion is to secrete:
A) Bile and lipase
B) Hydrochloric acid and pepsin
C) Pancreatic juice containing digestive enzymes
D) Intrinsic factor and mucus
8. Which of the following is a water-soluble vitamin?
A) Vitamin A
B) Vitamin D
C) Vitamin E
D) Vitamin B6
9. The hormone that stimulates the pancreas to release bicarbonate-rich fluid into the duodenum is:
A) Gastrin
B) Cholecystokinin (CCK)
C) Secretin
D) Insulin
10. Pellagra, a disease caused by niacin (Vitamin B3) deficiency, is characterized by the '3 Ds': Dermatitis, Diarrhea, and:
A) Dizziness
B) Dementia
C) Dehydration
D) Dyspnea
11. Which enzyme is produced in an inactive form (zymogen) and activated in the small intestine to digest proteins?
A) Pepsin
B) Chymotrypsinogen
C) Carboxypeptidase
D) Aminopeptidase
12. The thermic effect of food (TEF) refers to the energy expended for:
A) Digestion, absorption, and assimilation of food
B) Basal metabolic processes
C) Physical activity
D) Thermoregulation
13. A deficiency of Vitamin K can lead to problems with:
A) Blood clotting
B) Vision
C) Nerve function
D) Immune response
14. Which part of the small intestine is the main site for absorption of vitamin B12 and bile salts?
A) Duodenum
B) Jejunum
C) Ileum
D) Cecum
15. The primary function of the hormone leptin is to:
A) Stimulate appetite
B) Regulate water balance
C) Signal satiety and inhibit appetite
D) Increase heart rate
16. Gastric lipase, secreted by the stomach, primarily digests:
A) Proteins
B) Carbohydrates
C) Triglycerides
D) Nucleic acids
17. Which of the following is a fat-soluble vitamin?
A) Vitamin B1
B) Vitamin C
C) Vitamin D
D) Thiamine
18. The process by which the body breaks down complex molecules into simpler ones to release energy is called:
A) Anabolism
B) Catabolism
C) Metabolism
D) Homeostasis
19. Goiter, an enlargement of the thyroid gland, is typically caused by a deficiency of:
A) Selenium
B) Zinc
C) Iodine
D) Copper
20. The hormone that promotes the absorption of sodium and water by the kidneys is:
A) Aldosterone
B) Antidiuretic Hormone (ADH)
C) Atrial Natriuretic Peptide (ANP)
D) Renin
21. Which of the following is a primary function of the enzyme trypsin?
A) Digestion of carbohydrates
B) Digestion of fats
C) Digestion of proteins
D) Digestion of nucleic acids
22. The energy expenditure during physical activity is known as:
A) Basal Metabolic Rate (BMR)
B) Thermic effect of food
C) Activity Energy Expenditure (AEE)
D) Resting Metabolic Rate (RMR)
23. Night blindness is often associated with a deficiency of which vitamin?
A) Vitamin A
B) Vitamin E
C) Vitamin K
D) Vitamin B6
24. The main function of the hormone secretin is to stimulate the secretion of:
A) Gastric juice
B) Pancreatic bicarbonate
C) Bile
D) Insulin
25. Which mineral is crucial for oxygen transport in the blood and is a common deficiency leading to anemia?
A) Calcium
B) Potassium
C) Iron
D) Sodium
26. The process of breaking down large food molecules into smaller ones that can be absorbed is called:
A) Mechanical digestion
B) Chemical digestion
C) Absorption
D) Metabolism
27. Which hormone, secreted by the stomach lining, stimulates hunger?
A) Ghrelin
B) Leptin
C) Insulin
D) Glucagon
28. Marasmus is a form of malnutrition characterized by:
A) Severe edema
B) Muscle wasting and loss of subcutaneous fat
C) Skin lesions
D) Hair depigmentation
29. Which of the following is NOT a function of the liver in digestion?
A) Production of bile
B) Synthesis of plasma proteins
C) Detoxification of blood
D) Production of digestive enzymes
30. The pancreatic enzyme responsible for digesting fats into fatty acids and glycerol is:
A) Amylase
B) Pepsin
C) Lipase
D) Trypsin
31. Which vitamin is essential for the absorption of calcium and phosphorus?
A) Vitamin A
B) Vitamin K
C) Vitamin D
D) Vitamin E
32. The energy required to maintain essential life processes like breathing, circulation, and cell production at rest is known as:
A) Thermic effect of food
B) Activity energy expenditure
C) Basal Metabolic Rate (BMR)
D) Total energy expenditure
33. A deficiency of iodine in the diet can lead to which disorder?
A) Anemia
B) Goiter
C) Osteoporosis
D) Diabetes mellitus
34. Which hormone stimulates the gallbladder to contract and release bile?
A) Secretin
B) Gastrin
C) Cholecystokinin (CCK)
D) Insulin
35. The absorption of fatty acids and glycerol occurs primarily in the:
A) Stomach
B) Duodenum and Jejunum
C) Ileum
D) Large intestine
36. The enzyme responsible for breaking down proteins into smaller peptides in the stomach is:
A) Amylase
B) Lipase
C) Pepsin
D) Trypsinogen
37. Which of the following is a symptom of scurvy, a disease caused by Vitamin C deficiency?
A) Night blindness
B) Bleeding gums
C) Goiter
D) Muscle cramps
38. The primary role of the large intestine in digestion and absorption is:
A) Absorption of proteins
B) Absorption of water and electrolytes
C) Digestion of carbohydrates
D) Secretion of digestive enzymes
39. Factors that can increase Basal Metabolic Rate (BMR) include:
A) Sleep
B) Fasting
C) Fever and increased thyroid hormone levels
D) Cold exposure
40. Rickets, a condition characterized by soft and deformed bones, is caused by a deficiency of:
A) Vitamin A
B) Vitamin B1
C) Vitamin C
D) Vitamin D
41. The process by which digested food molecules pass through the intestinal wall into the blood or lymph is called:
A) Ingestion
B) Digestion
C) Absorption
D) Egestion
42. Which hormone is secreted by the pancreas and lowers blood glucose levels?
A) Glucagon
B) Insulin
C) Somatostatin
D) Pancreatic polypeptide
43. Kwashiorkor, a severe protein deficiency disorder, is characterized by:
A) Extreme thinness and wasting
B) Edema (swelling), particularly in the abdomen
C) Impaired vision
D) Bone deformities
44. The brush border enzymes, responsible for the final digestion of carbohydrates and proteins, are located on the microvilli of:
A) Gastric cells
B) Pancreatic acinar cells
C) Intestinal epithelial cells
D) Hepatocytes
45. Which of the following is a major function of hydrochloric acid (HCl) in the stomach?
A) Emulsification of fats
B) Activation of pepsinogen to pepsin
C) Absorption of vitamin B12
D) Neutralization of chyme
46. Basal Metabolic Rate (BMR) is defined as the energy expenditure of the body at:
A) Resting state after a meal
B) Vigorous physical activity
C) Complete rest and fasting
D) Moderate exercise
47. Pernicious anemia is a nutritional disorder caused by the deficiency of:
A) Vitamin C
B) Vitamin D
C) Vitamin B12
D) Iron
48. Bile, produced by the liver, aids in the digestion and absorption of:
A) Proteins
B) Carbohydrates
C) Fats
D) Vitamins
49. Which hormone stimulates the secretion of gastric juice in the stomach?
A) Secretin
B) Cholecystokinin (CCK)
C) Gastrin
D) Insulin
50. The primary site for the absorption of digested nutrients in the small intestine is the:
A) Duodenum
B) Jejunum
C) Ileum
D) All of the above