Nufs115 Midterm 1 Review, Chou With Complete Solution

What is RDA? {Ans: Recommended dietary allowance. The estimated amount of a nutrient per day considered necessary.}Simple passive diffusion {Ans: Substance passes through w/o an aid}NOEL {Ans: No Observed Effect Level. Highest Dose w/o response.}Placebo {Ans: Substance that has no therapeutic effect, used as a control.}What is anecdotal evidence? {Ans: Personal testimony (short story) where only one or few anecdotes are presented.}What is the primary site for biotransformation? {Ans: Liver}How are toxic substances metabolized in the body? {Ans: Through biotransformation whereby a substance is changed from one chemical to another by a chemical reaction within the body}Placental barrier {Ans: -layers of cell -most toxic substances by simple diffusion but active transport protects the fetus}Hazard Identification {Ans: What the hazard is/its ability to cause harm.}LDn {Ans: Lethal dose n}1mg = ?ug {Ans: 1000ug}Interventional Study {Ans: A study in which participants are assigned to receive one or more interventions so that researchers can evaluate the effects of the interventions on health-related outcomes}Longitudinal Study {Ans: Collect information on a few individuals over a long period of time.}Chromatography {Ans: Separation principle with a mobile phase (mixture of chemicals) that moves