Which statement is not true regarding vitamins?
1. Human cells are able to synthesize most vitamins.
2. The symptoms of the deficiency can be reversed by the administration of the missing vitamin.
3. If the vitamin is not present in adequate amounts, the body's metabolism will be disrupted, and disease will result.
4. Vitamins or their precursors must be supplied in the diet.
1
Rationale 1: The body is only able to synthesize vitamin D.
Rationale 2:The symptoms of the deficiency can be reversed by the administration of the missing vitamin.
Rationale 3:If the vitamin is not present in adequate amounts, the body's metabolism will be disrupted, and disease will result.
Rationale 4: They or their precursors—known as provitamins—must be supplied in the diet. A second important characteristic is that if the vitamin is not present in adequate amounts, the body's metabolism will be disrupted, and disease will result.
Global Rationale: The body is only able to synthesize vitamin D. An important characteristic of vitamins is that, with the exception of vitamin D, human cells cannot synthesize them. They or their precursors—known as provitamins—must be supplied in the diet. A second important characteristic is that if the vitamin is not present in adequate amounts, the body's metabolism will be disrupted, and disease will result. Furthermore, the symptoms of the deficiency can be reversed by the administration of the missing vitamin.
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