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cotransport or symport systems - CORRECT ANSWER-consist of sodium ions and the solute
being transported in the same direction
counter-transport or antiport systems - CORRECT ANSWER-has sodium ions and the solute
being transported in the opposite direction. An example of cotransport occurs in the intestine in
which the absorption of glucose and amino acids is paired with sodium transport.
cytoskeleton elements and the function - CORRECT ANSWER-contains a network of
microtubules, microfilaments, intermediate filaments, and thick filaments. They control cell
shape and movement.
diffusion - CORRECT ANSWER-the process by which electrolytes move from an area of higher
concentration on one side of the membrane to an area of lower concentration on the other side
down-regulation - CORRECT ANSWER-Every cell has a distinct set of surface receptors that allow
it to respond to signaling molecules in a specific way. These proteins can increase or decrease in
number according to the needs of the cell.
, When there are too many chemical messengers present, the number of active receptors
decreases
dysplasia - CORRECT ANSWER-disordered cellular growth and can result in cells that vary in size,
shape, and organization. Dysplasia is reversible, in theory, with alleviation of inciting stress. If
stress persists, dysplasia progresses to carcinoma (irreversible).
endocytosis and its 2 processes - CORRECT ANSWER-occurs when a molecule outside of the cell
is enclosed in an invagination of the cell membrane forming a vesicle inside the cell. It includes
pinocytosis and phagocytosis. Pinocytosis, or "cell drinking," engulfs small solid or fluid
particles, as seen with proteins and electrolytes. Phagocytosis means "cell eating" and engulfs
and then kills microorganisms or other particulate matter.
epidemiology - CORRECT ANSWER-the study of disease occurrence in human populations. It
tracks age, race, dietary habits, lifestyle, or geographic location.
epithelial tissue - CORRECT ANSWER-covers the body's outer surface, lines the inner surfaces,
and forms glandular tissue. It is avascular, meaning without blood vessels.
evidence-based practice - CORRECT ANSWER-the conscientious, explicit, and judicious use of
current best evidence in making decisions about the care of individual patients. This is to
counteract "the way things have always been done," and to practice based on clinical research.
facilitated diffusion - CORRECT ANSWER-uses a transport protein to help lipid insoluble or large
molecules pass through the membrane, that otherwise would not be able to get through
function of lysosomes - CORRECT ANSWER-the digestive system of the cell
function of peroxisomes - CORRECT ANSWER-smaller than lysosomes and function in the
control of free radicals