Describe how nutrients alter gene expression
Various nutrients can switch gene expression on or off. The promoter region of a gene acts as the master switch. A large variety of proteins known as transcription factors can bind to areas on the promoter and either enhance or inhibit gene expression. A combination of dietary factors and hormones influences the types of transcription factors that reach the nucleus and their tendency to bind to DNA.
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Diseases that cause malabsorption of fat can result in a vitamin C deficiency
Indicate whether the statement is true or false
With stretching, soft tissues can lengthen and improve ?exibility
Indicate whether the statement is true or false
Which of these elements is found in protein but NOT in carbohydrates and lipids?
a. carbon b. nitrogen c. hydrogen d. oxygen
To maintain pH, a healthy, normal functioning kidney will reabsorb the majority of:
A. H+ B. H2O C. nitrogen D. phosphate E. HCO3-