Which of the following are water-soluble vitamins?
Select all that apply.
B6
K
A
E
C
Correct Answer : A,E
A. B6 (pyridoxine) is a water-soluble vitamin that plays roles in metabolism, red blood cell production, and the nervous system.
B. Vitamin K is a fat-soluble vitamin responsible for blood clotting and is not water-soluble.
C. Vitamin A is a fat-soluble vitamin important for vision, immune function, and skin health, not water-soluble.
D. Vitamin E is a fat-soluble antioxidant vitamin, not water-soluble.
E. Vitamin C (ascorbic acid) is a water-soluble vitamin crucial for collagen synthesis, antioxidant function, and immune support.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Saliva contains enzymes like amylase that break down starches into simpler sugars, initiating their digestion in the mouth.
B. Fat digestion primarily starts in the small intestine with the action of bile and pancreatic lipase.
C. Protein digestion begins in the stomach with the action of enzymes like pepsin.
D. Fiber is not digested by enzymes in the human digestive system, though it aids in digestion and promotes bowel movements.
Correct Answer is C
Explanation
A. The duodenum is the first part of the small intestine but is not the primary site for vitamin B12 absorption. It's primarily absorbed in the lower part of the small intestine called the ileum.
B. While the stomach plays a role in releasing intrinsic factor that aids in B12 absorption, the actual absorption occurs in the small intestine, particularly the ileum.
C. Vitamin B12 absorption primarily occurs in the lower part of the small intestine, facilitated by intrinsic factors.
D. The large intestine is mainly responsible for water absorption and electrolyte balance, not vitamin B12 absorption.
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