Which of the following is not involved in chemical digestion?
Oral cavity
Stomach
Small intestine
Large intestine
The Correct Answer is D
A. Oral cavity is involved in chemical digestion through the action of salivary enzymes like amylase.
B. Stomach is involved in chemical digestion with gastric acids and pepsin.
C. Small intestine is a major site for chemical digestion and nutrient absorption.
D. Large intestine is primarily involved in the absorption of water and electrolytes and the formation of feces. It is less involved in chemical digestion compared to the other organs listed.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Oral cavity is involved in chemical digestion through the action of salivary enzymes like amylase.
B. Stomach is involved in chemical digestion with gastric acids and pepsin.
C. Small intestine is a major site for chemical digestion and nutrient absorption.
D. Large intestine is primarily involved in the absorption of water and electrolytes and the formation of feces. It is less involved in chemical digestion compared to the other organs listed.
Correct Answer is A
Explanation
A. K+: Potassium (K+) is the most abundant cation in the intracellular fluid (ICF). This is the correct answer.
B. Ca2+: Calcium (Ca2+) is not the most abundant cation in the ICF; it is found in lower concentrations within cells compared to potassium.
C. Cl-: Chloride (Cl-) is the most abundant anion in the extracellular fluid (ECF), not in the intracellular fluid.
D. Na: Sodium (Na) is the most abundant cation in the extracellular fluid (ECF), not in the intracellular fluid.
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