FIRST PUBLISH OCTOBER 2024
Bio 261/ SBVC Exam Study Guide
Solutions
Structural Organization of the Body - ANSWER✔✔-chemical level, cellular level, tissue level, organ level,
organ system level, organismal level
Characteristics of life - ANSWER✔✔-movement, responsiveness, growth, reproduction, respiration,
digestion, absorption, excretion
Homeostasis - ANSWER✔✔-A tendency to maintain a balanced or constant internal state; the regulation
of any aspect of body chemistry, such as blood glucose, around a particular level
dynamic equilibrium - ANSWER✔✔-a state of balance between continuing processes
negative feedback loop - ANSWER✔✔-Causes a system to change in the opposite direction from which it
is moving
Receptor negative feedback loop - ANSWER✔✔-your body detects the imbalance and sends the
information to its control center
Integrator
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FIRST PUBLISH OCTOBER 2024
(Negative feedback loop) - ANSWER✔✔-creates a response/trigger
Effector (negative feedback) - ANSWER✔✔-carries out response
positive feedback loop - ANSWER✔✔-a feedback loop in which change in a system is amplified. DOES
NOT MAINTAIN HOMEOSTASIS
chemical reaction - ANSWER✔✔-(chemistry) a process in which one or more substances are changed
into others
decompostion reaction - ANSWER✔✔-a chemical reaction that occurs when a single compound breaks
down into two or more elements or new compounds
synthesis reaction - ANSWER✔✔-a reaction in which two or more substances combine to form a new
compound. BUILDS UP
exchange reaction - ANSWER✔✔-Parts of the reacting molecules are shuffled around to produce new
products
reversible reaction - ANSWER✔✔-a chemical reaction in which the products re-form the original
reactants
law of mass action - ANSWER✔✔-A CHANGE TO COUNTER A CHANGE AND MAKE IT BALANCED
catalyst - ANSWER✔✔-substance that speeds up the rate of a chemical reaction
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