How can Rob compare the amount of vitamin A nutrition he is getting from various foods when some of the foods contain preformed vitamin A and some contain carotenoids?
Because there are several forms of vitamin A, each with its own biological potency, scientists use a unit of measure called the retinol activity equivalent (RAE) to describe the overall vitamin A content of foods. The RAE makes it possible to compare the nutritional content of foods containing preformed vitamin A to foods containing provitamin A carotenoids, such as ?-carotene.
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Epigenetics relates not to the genome sequence itself, but to the inherited pattern of gene expression regulated by modifications to DNA
a. True b. False Indicate whether the statement is true or false
Ketosis can be an indicator of a shift in diet composition
What diet composition induces ketosis and why?
For children, a sharp drop in a previously steady growth pattern suggests:
a. malnutrition. b. obesity. c. a growth spurt. d. a medical error.
The tricarboxylic acid (TCA) cycle is a continuous loop of how many metabolic reactions?
A. 4 B. 8 C. 11 D. 21