NBME CBSE Practice Exam Preparation
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Questions and Correct Detailed
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1. What is the primary site of erythropoietin production?
A. Liver
B. Kidney
C. Spleen
D. Bone marrow
Answer: B
Rationale: Erythropoietin is produced by the kidneys in response to hypoxia.
2. Which vitamin is required for collagen synthesis hydroxylation?
A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin K
Answer: B
Rationale: Vitamin C is essential for collagen hydroxylation.
3. Which blood cell type is primarily involved in allergic reactions?
A. Neutrophils
B. Eosinophils
C. Basophils
D. Monocytes
Answer: C
Rationale: Basophils release histamine in allergic responses.
4. What is the main function of hemoglobin?
A. Immune defense
B. Oxygen transport
C. Glucose transport
,D. Fat metabolism
Answer: B
Rationale: Hemoglobin carries oxygen in red blood cells.
5. Where does glycolysis occur?
A. Mitochondria
B. Cytoplasm
C. Nucleus
D. Golgi apparatus
Answer: B
Rationale: Glycolysis occurs in the cytoplasm.
6. What is the end product of glycolysis under aerobic conditions?
A. Lactate
B. Pyruvate
C. Acetyl-CoA
D. Glucose
Answer: B
Rationale: Pyruvate is produced during aerobic glycolysis.
7. What enzyme converts angiotensin I to angiotensin II?
A. Renin
B. ACE
C. Aldosterone
D. ADH
Answer: B
Rationale: ACE converts angiotensin I to II.
8. Where is insulin produced?
A. Alpha cells
B. Beta cells of pancreas
C. Liver
D. Adrenal cortex
Answer: B
Rationale: Beta cells of the pancreas produce insulin.
9. What is the primary action of insulin?
A. Increase blood glucose
, B. Decrease blood glucose
C. Increase blood pressure
D. Increase heart rate
Answer: B
Rationale: Insulin lowers blood glucose by promoting uptake.
10. Which hormone increases blood glucose?
A. Insulin
B. Glucagon
C. Thyroxine
D. Calcitonin
Answer: B
Rationale: Glucagon raises blood glucose levels.
11. What is the functional unit of the kidney?
A. Neuron
B. Nephron
C. Alveolus
D. Hepatocyte
Answer: B
Rationale: The nephron is the kidney’s functional unit.
12. Where is most sodium reabsorbed?
A. Collecting duct
B. Proximal tubule
C. Distal tubule
D. Bladder
Answer: B
Rationale: The proximal tubule reabsorbs most sodium.
13. What structure filters blood in the kidney?
A. Loop of Henle
B. Glomerulus
C. Ureter
D. Cortex
Answer: B
Rationale: The glomerulus performs filtration.
Newest Version with Complete
Questions and Correct Detailed
Answers| Brand New Version!
1. What is the primary site of erythropoietin production?
A. Liver
B. Kidney
C. Spleen
D. Bone marrow
Answer: B
Rationale: Erythropoietin is produced by the kidneys in response to hypoxia.
2. Which vitamin is required for collagen synthesis hydroxylation?
A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin K
Answer: B
Rationale: Vitamin C is essential for collagen hydroxylation.
3. Which blood cell type is primarily involved in allergic reactions?
A. Neutrophils
B. Eosinophils
C. Basophils
D. Monocytes
Answer: C
Rationale: Basophils release histamine in allergic responses.
4. What is the main function of hemoglobin?
A. Immune defense
B. Oxygen transport
C. Glucose transport
,D. Fat metabolism
Answer: B
Rationale: Hemoglobin carries oxygen in red blood cells.
5. Where does glycolysis occur?
A. Mitochondria
B. Cytoplasm
C. Nucleus
D. Golgi apparatus
Answer: B
Rationale: Glycolysis occurs in the cytoplasm.
6. What is the end product of glycolysis under aerobic conditions?
A. Lactate
B. Pyruvate
C. Acetyl-CoA
D. Glucose
Answer: B
Rationale: Pyruvate is produced during aerobic glycolysis.
7. What enzyme converts angiotensin I to angiotensin II?
A. Renin
B. ACE
C. Aldosterone
D. ADH
Answer: B
Rationale: ACE converts angiotensin I to II.
8. Where is insulin produced?
A. Alpha cells
B. Beta cells of pancreas
C. Liver
D. Adrenal cortex
Answer: B
Rationale: Beta cells of the pancreas produce insulin.
9. What is the primary action of insulin?
A. Increase blood glucose
, B. Decrease blood glucose
C. Increase blood pressure
D. Increase heart rate
Answer: B
Rationale: Insulin lowers blood glucose by promoting uptake.
10. Which hormone increases blood glucose?
A. Insulin
B. Glucagon
C. Thyroxine
D. Calcitonin
Answer: B
Rationale: Glucagon raises blood glucose levels.
11. What is the functional unit of the kidney?
A. Neuron
B. Nephron
C. Alveolus
D. Hepatocyte
Answer: B
Rationale: The nephron is the kidney’s functional unit.
12. Where is most sodium reabsorbed?
A. Collecting duct
B. Proximal tubule
C. Distal tubule
D. Bladder
Answer: B
Rationale: The proximal tubule reabsorbs most sodium.
13. What structure filters blood in the kidney?
A. Loop of Henle
B. Glomerulus
C. Ureter
D. Cortex
Answer: B
Rationale: The glomerulus performs filtration.
