Anatomy and Physiology McGraw Hill
Exam 1 (2026) | Exam Prep with Solved
Questions | Graded A+
• Receptor . Answer: body structure that monitors changes in a
controlled condition and sends input to a control center
• Stimulus . Answer: a signal to which an organism responds
• control center . Answer: processes the signal and sends instructions
• Effector . Answer: an organ or cell that acts in response to a stimulus.
• negative feedback . Answer: A primary mechanism of homeostasis,
whereby a change in a physiological variable that is being monitored
triggers a response that counteracts the initial fluctuation.
• positive feedback . Answer: Feedback that tends to magnify a process
or increase its output until a climatic event occurs.
• An example of negative feedback . Answer: Controlling body
temperature
• An example of positive feedback . Answer: A mother breastfeeding
,• An example of homeostasis imbalance . Answer: Diabetes
• What is an SSRI? . Answer: Selective Serotonin Reuptake Inhibitor; an
example of this is Serotonin, which is a neurotransmitter.
• organic compounds . Answer: Compounds that contain carbon
• inorganic compounds . Answer: Compounds that do not contain carbon
• Examples of organic compounds . Answer: carbohydrates, lipids,
proteins, nucleic acids
• examples of inorganic compounds . Answer: water, salts, acids, bases
• Properties of water . Answer: High heat capacity, high heat of
vaporization, polar solvent, reactivity, cushion
• Acid . Answer: A substance that increases the hydrogen ion
concentration of a solution (H+)
• Base . Answer: A substance that decreases the hydrogen ion
concentration in a solution (OH-)
, • As a liquid, how does water serve as a function in the body? . Answer:
Transportation, lubrication, cushioning, and excretes wastses.
• What kind of a solvent is water? . Answer: universal solvent - polar
• What kind of substances dissolve in water? . Answer: polar molecules
(glucose) and ions (Na+)
• Hydrophobic . Answer: Water fearing
• Hydrophilic . Answer: Water loving
• Why do polar molecules dissolve in water better than others? . Answer:
Because of the hydrogen bonds that form between those molecules and
water molecules.
• What is dissociation? . Answer: the process in which an ionic
compound separates into ions as it dissolves
• Electrolyte . Answer: An ionic compound whose aqueous solution
conducts an electric current (salts, acids, bases).
• polar . Answer: Molecule with partial charges. Mixes with water.
• nonpolar . Answer: No partial charges. Do not mix with water.
Exam 1 (2026) | Exam Prep with Solved
Questions | Graded A+
• Receptor . Answer: body structure that monitors changes in a
controlled condition and sends input to a control center
• Stimulus . Answer: a signal to which an organism responds
• control center . Answer: processes the signal and sends instructions
• Effector . Answer: an organ or cell that acts in response to a stimulus.
• negative feedback . Answer: A primary mechanism of homeostasis,
whereby a change in a physiological variable that is being monitored
triggers a response that counteracts the initial fluctuation.
• positive feedback . Answer: Feedback that tends to magnify a process
or increase its output until a climatic event occurs.
• An example of negative feedback . Answer: Controlling body
temperature
• An example of positive feedback . Answer: A mother breastfeeding
,• An example of homeostasis imbalance . Answer: Diabetes
• What is an SSRI? . Answer: Selective Serotonin Reuptake Inhibitor; an
example of this is Serotonin, which is a neurotransmitter.
• organic compounds . Answer: Compounds that contain carbon
• inorganic compounds . Answer: Compounds that do not contain carbon
• Examples of organic compounds . Answer: carbohydrates, lipids,
proteins, nucleic acids
• examples of inorganic compounds . Answer: water, salts, acids, bases
• Properties of water . Answer: High heat capacity, high heat of
vaporization, polar solvent, reactivity, cushion
• Acid . Answer: A substance that increases the hydrogen ion
concentration of a solution (H+)
• Base . Answer: A substance that decreases the hydrogen ion
concentration in a solution (OH-)
, • As a liquid, how does water serve as a function in the body? . Answer:
Transportation, lubrication, cushioning, and excretes wastses.
• What kind of a solvent is water? . Answer: universal solvent - polar
• What kind of substances dissolve in water? . Answer: polar molecules
(glucose) and ions (Na+)
• Hydrophobic . Answer: Water fearing
• Hydrophilic . Answer: Water loving
• Why do polar molecules dissolve in water better than others? . Answer:
Because of the hydrogen bonds that form between those molecules and
water molecules.
• What is dissociation? . Answer: the process in which an ionic
compound separates into ions as it dissolves
• Electrolyte . Answer: An ionic compound whose aqueous solution
conducts an electric current (salts, acids, bases).
• polar . Answer: Molecule with partial charges. Mixes with water.
• nonpolar . Answer: No partial charges. Do not mix with water.
