Chloride is the main anion in extracellular fluid. an intracellular fluid ion. a

Question

Chloride is the main anion in extracellular fluid. an intracellular fluid ion. a positively charged ion. converted to chlorine in the intestinal tract. Oxalic acid binds minerals so they cannot be absorbed. Oxalic acid is found in leafy, green vegetables, such as spinach. milk and dairy products. cereal grain fibers. liver and other organ meats. A major role of vitamin B-12 in cellular metabolism is transfer of a methyl group to the amino acid homocysteine, forming the amino acid methionine. transfer of a methyl group to the pyrimidine uracil, forming the pyrimidine thymine. in transamination reactions, allowing the synthesis of nonessential amino acids. as an electron acceptor, allowing function of the electron transport chain. Which of the following does NOT describe fat-soluble vitamins? They can be stored in the body. Excesses are excreted in the urine. They are absorbed via the lymphatic system. They often exist in several biologically active forms. A leading cause of blindness in the world today (excluding accidents) is a dietary deficiency of vitamin A. vitamin D. vitamin E. vitamin K. Formation and maintenance of collagen requires thiamin. vitamin. riboflavin. folate. Salt substitutes often contain sodium bicarbonate. potassium chloride. calcium carbonate. magnesium sulfate.

Explanation / Answer

(29) A

The major anion of the extracellular fluid is chloride.

(30) A

Members of the spinach family and the brassicas(cabbage,borocolli,sprouts) are high in oxalates.

(31) B

Major role of vitamin B-12 is to transfer of a methyl group to the amino acid homocysteine forming the amino acid methionine.

(32) B

Our body eliminates fat soluble vitamins more slowly than water soluble.So if consumed in excess pose a great danger of toxidity because they are accumulated in the body.

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