ANATOMY MCGRAW HILL Questions and Answers Verified Solutions Latest Update

ANATOMY MCGRAW HILL Questions and Answers Verified
Solutions Latest Update

Question: Homeostasis
Answer:
Process by which organisms maintain a relatively stable internal environment

Question: Receptor
Answer:
Body structure that monitors changes in a controlled condition and sends input to a control center

Question: Stimulus
Answer:
A signal to which an organism responds

Question: Control center
Answer:
Processes the signal and sends instructions

Question: Effector
Answer:
An organ or cell that acts in response to a stimulus.

Question: 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.

Question: Positive feedback
Answer:
Feedback that tends to magnify a process or increase its output until a climatic event occurs.

Question: An example of negative feedback?
Answer:
Controlling body temperature

Question: An example of positive feedback?
Answer:
A mother breastfeeding

,Question: An example of homeostasis imbalance?
Answer:
Diabetes

Question: SSRI?
Answer:
Selective Serotonin Reuptake Inhibitor; an example of this is Serotonin, which is a neurotransmitter.

Question: Organic compounds
Answer:
Compounds that contain carbon

Question: Inorganic compounds
Answer:
Compounds that do not contain carbon

Question: Examples of organic compounds
Answer:
Carbohydrates, lipids, proteins, nucleic acids

Question: Examples of inorganic compounds
Answer:
Water, salts, acids, bases

Question: Properties of water
Answer:
High heat capacity, high heat of vaporization, polar solvent, reactivity, cushion

Question: Acid
Answer:
A substance that increases the hydrogen ion concentration of a solution (H+)

Question: Base
Answer:
A substance that decreases the hydrogen ion concentration in a solution (OH-)

Question: As a liquid, how does water serve as a function in the body?
Answer:
Transportation, lubrication, cushioning, and excretes wastses.

, Question: What kind of a solvent is water?
Answer:
Universal solvent - polar

Question: What kind of substances dissolve in water?
Answer:
Polar molecules (glucose) and ions (Na+)

Question: Hydrophobic
Answer:
Water fearing

Question: Hydrophilic
Answer:
Water loving

Question: Why do polar molecules dissolve in water better than others?
Answer:
Because of the hydrogen bonds that form between those molecules and water molecules.

Question: What is dissociation?
Answer:
The process in which an ionic compound separates into ions as it dissolves

Question: Electrolyte
Answer:
An ionic compound whose aqueous solution conducts an electric current (salts, acids, bases).

Question: Polar
Answer:
Molecule with partial charges. Mixes with water.

Question: Nonpolar
Answer:
No partial charges. Do not mix with water.

Question: Proton donor
Answer:
Acid