Why are so many nutritionists recommending that Americans increase the intake of fiber in their diets?
What will be an ideal response?
Fiber increases the speed at which materials move through the colon, removing toxins with it as it leaves the body. Diets low in fiber are associated with many health ailments. Fiber in the diet also helps maintain a feeling of fullness, which is beneficial to people trying to reduce their intake of calories.
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In systemic acquired resistance, the regulatory protein NPR-1 moves from the cytoplasm to the cell nucleus,
apparently in response to a buildup of ____ in the cytoplasm.
a. ethylene b. brassinosteroids c. oligosaccharins d. jasmonates e. salicylic acid
In cyclic photophosphorylation, the electrons
a) return to chlorophyll. b) are incorporated in NADPH. c) are converted to ATP. d) are converted to glucose.
Most polyploid species arise from
A) a single diploid parent plant. B) a single triploid parent plant. C) a single tetraploid parent plant. D) the hybridization of two parent species.
Describe two ways that the formation of a double helical region between an RNA regulator and its target can affect the target
What will be an ideal response?