Bio 253 Quiz 1 UPDATED ACTUAL Exam
Questions and CORRECT Answers
anatomy - CORRECT ANSWER - study of the structure/morphology of the body and parts
Physiology - CORRECT ANSWER - the study of the functions of the human body and
parts
negative feedback - CORRECT ANSWER - Most common type of homeostatic
mechanism. Effectors return conditions toward normal range, and the deviation point lessens. Ex.
BP, temperature
positive feedback - CORRECT ANSWER - Uncommon, the deviation from the body's
setpoint is intensified to speed along a bodily process. Ex. blood clotting, childbirth.
organic molecules - CORRECT ANSWER - Molecules that contain BOTH carbon and
hydrogen. Dissolve in water. Ex. carbs, lipids, nucleic acids, proteins
inorganic molecules - CORRECT ANSWER - Molecules that do not contain both carbon
and hydrogen, usually one or the other. Electrolytes that release ions when dissolved in water.
Ex. H2O, CO2, inorganic salts
Superficial (external) - CORRECT ANSWER - toward or at the body surface
Deep (internal) - CORRECT ANSWER - Away from the body surface; more internal
Anterior (ventral) - CORRECT ANSWER - front of the body
Posterior (dorsal) - CORRECT ANSWER - back of the body
Questions and CORRECT Answers
anatomy - CORRECT ANSWER - study of the structure/morphology of the body and parts
Physiology - CORRECT ANSWER - the study of the functions of the human body and
parts
negative feedback - CORRECT ANSWER - Most common type of homeostatic
mechanism. Effectors return conditions toward normal range, and the deviation point lessens. Ex.
BP, temperature
positive feedback - CORRECT ANSWER - Uncommon, the deviation from the body's
setpoint is intensified to speed along a bodily process. Ex. blood clotting, childbirth.
organic molecules - CORRECT ANSWER - Molecules that contain BOTH carbon and
hydrogen. Dissolve in water. Ex. carbs, lipids, nucleic acids, proteins
inorganic molecules - CORRECT ANSWER - Molecules that do not contain both carbon
and hydrogen, usually one or the other. Electrolytes that release ions when dissolved in water.
Ex. H2O, CO2, inorganic salts
Superficial (external) - CORRECT ANSWER - toward or at the body surface
Deep (internal) - CORRECT ANSWER - Away from the body surface; more internal
Anterior (ventral) - CORRECT ANSWER - front of the body
Posterior (dorsal) - CORRECT ANSWER - back of the body
