BIOL 252 EXAM 1 (HUMAN
PHYSIOLOGY) NEWEST 2025 COMPLETE
QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+||BRAND NEW
VERSION!!
What is anatomy? - CORRECT ANSWER-The study of the structure of
living organisms.
What is physiology? - CORRECT ANSWER-The study of how living
organisms function.
,What are some examples of physiological variation amongst individuals? -
CORRECT ANSWER-Age, genetics, diet, weight, physical activity, and the
environment.
What is homeostasis? - CORRECT ANSWER-A relatively constant internal
environment
What are some factors that must be maintained via homeostasis? -
CORRECT ANSWER-Heart rate, body temperature, blood pressure, etc.
What are the components of homeostasis? - CORRECT ANSWER-
Receptors, control/integrating center, and effectors.
What is a negative feedback mechanism? - CORRECT ANSWER-A
response that makes deviation from the set point smaller--resisting change
What is a positive feedback mechanism? - CORRECT ANSWER-A
response that increases the deviation from the set point
, Which mechanism is more common and why? - CORRECT ANSWER-
Negative feedback; they bring us closer to homeostasis
When may a positive feedback mechanism be deplyed? - CORRECT
ANSWER-Childbirth, opening of sodium channels with action potentials, or
platelet-plug formation during blood clotting.
What do receptors do in feedback loops? - CORRECT ANSWER-Monitor
the value of some variable and send information to the control/integrating
center.
What does the control/integrating center do in feedback loops? -
CORRECT ANSWER-Establishes the set point and compares incoming
information to that set point.
What does the effector do in feedback loops? - CORRECT ANSWER-Take
signals from the control center and change activity to change the variable.
PHYSIOLOGY) NEWEST 2025 COMPLETE
QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+||BRAND NEW
VERSION!!
What is anatomy? - CORRECT ANSWER-The study of the structure of
living organisms.
What is physiology? - CORRECT ANSWER-The study of how living
organisms function.
,What are some examples of physiological variation amongst individuals? -
CORRECT ANSWER-Age, genetics, diet, weight, physical activity, and the
environment.
What is homeostasis? - CORRECT ANSWER-A relatively constant internal
environment
What are some factors that must be maintained via homeostasis? -
CORRECT ANSWER-Heart rate, body temperature, blood pressure, etc.
What are the components of homeostasis? - CORRECT ANSWER-
Receptors, control/integrating center, and effectors.
What is a negative feedback mechanism? - CORRECT ANSWER-A
response that makes deviation from the set point smaller--resisting change
What is a positive feedback mechanism? - CORRECT ANSWER-A
response that increases the deviation from the set point
, Which mechanism is more common and why? - CORRECT ANSWER-
Negative feedback; they bring us closer to homeostasis
When may a positive feedback mechanism be deplyed? - CORRECT
ANSWER-Childbirth, opening of sodium channels with action potentials, or
platelet-plug formation during blood clotting.
What do receptors do in feedback loops? - CORRECT ANSWER-Monitor
the value of some variable and send information to the control/integrating
center.
What does the control/integrating center do in feedback loops? -
CORRECT ANSWER-Establishes the set point and compares incoming
information to that set point.
What does the effector do in feedback loops? - CORRECT ANSWER-Take
signals from the control center and change activity to change the variable.
