Which enzyme begins digestion of protein in the stomach?
pepsin
amylase
intrinsic factor
lipase
The Correct Answer is A
A. pepsin: pepsin (activated from pepsinogen) is the primary enzyme that begins protein digestion in the stomach.
B. amylase: amylase digests carbohydrates, primarily in the mouth/small intestine, not proteins in the stomach.
C. intrinsic factor: intrinsic factor (from parietal cells) is needed for vitamin B₁₂ absorption, not protein digestion.
D. lipase: lipase digests fats; gastric lipase plays a minor role but is not the main stomach protease.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. In the lungs -Control centers are in the brainstem, not lungs.
B. In the pons -The pons houses the pneumotaxic and apneustic centers.
C. In the midbrain -The midbrain controls reflexes, not primary breathing rhythm.
D. In the medulla oblongata -The VRG in the medulla generates the basic breathing rhythm.
Correct Answer is B
Explanation
A. Fibrinogen, globulins, and albumin: those are plasma proteins, not electrolytes (they’re large molecules, not ions).
B. Bicarbonate, magnesium, chloride, and potassium ions: these are ions dissolved in plasma and are classically considered electrolytes.
C. Monocytes, basophils, and eosinophils: those are white blood cells (formed elements), not electrolytes.
D. Creatinine, urea, and uric acid: those are nitrogenous waste/metabolites present in plasma, not electrolytes.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.