Active transport requires energy because it involves the movement of a substance across a membrane from an area of low concentration to an area of higher concentration
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Proteins use the process of active transport to move substances into or out of the cell by: a. opening passages in the membrane and escorting substances into the cell
b. attaching to minerals to carry them throughout the bloodstream. c. decreasing the water content in cells to get rid of excess acid or base levels. d. sending antibodies to cells to carry excess proteins out to where they are needed. e. binding to insoluble molecules and moving them through osmosis.
Unintentional injuries are the number-one killer of people aged 15-34 in the United States
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A characteristic of an insoluble fiber is that it is:
a. gritty or stringy in foods. b. viscous and forms into a gel. c. easily digested by bacteria in the colon. d. used as gums added to thicken other foods.
The percentage of unexplained weight loss during l month that warrants further investigation is:
a. 1%. b. 2%. c. 5%. d. 10%.