The body and Hierarchy
What is the difference between Anatomy and Physiology?
Anatomy is the study of structure. Physiology is the study of function
Humans have an urgent need for what element?
Oxygen
An example of a normal physiological process that uses positive feedback in the body is?
Childbirth/Labor
What is true about electrons in a polar covalent bond?
Electrons are shared in a mutually stabilizing arrangement resulting in a molecule where there are partial positive or negative regions.
Enzymes are temperature sensitive proteins within the body that participate in chemical reactions. t/f
The body keeping itself regulated and within its narrow range/set-point
What is homeostasis?
What is all of the body's chemical reactions, including the breakdown and synthesis?
Metabolism
Nerve Cells after lunch respond to distenion resulting from food. They relay this information to what?
The control system
Which of the following describes an ionic bond?
A force of attraction between cations and anions due to opposite charges
100 x
This is the variety of molecules combine to form fluid and organelles of body cells. Examples include skeletal and muscular cells.
In DNA, nucleotide bonding forms a compound with a characteristic shape known as a(n) ________.
Double Helix
An ___________ is the structure responsible for carrying out the directions of the control center.
Effector
A covalent chemical bond is one in which ________.
outer-shell electrons of two atoms are shared so as to satisfactorily fill their respective orbitals
What type of bond is not a "true" chemical bond?
A hydrogen bond
Which of the following body regions corresponds to the term oris?
Mouth
What is the difference between catabolism and anabolism?
Catabolism- breaks materials down and gives building block
Anabolism- takes and acquires ATP and synthesizes the body structure
What is the term for the sensor that brings the information from the receptor to the control center?
Afferent
Characteristic of element gives it its distinctive property?
Protons (you can not change these)
Substance formed by chemicals of equal number of cations and anions and is held together by ionic bonds?
Which specific body cavity contains the lungs?
Pleural Cavity
What are examples of micro/maconutrients?
Micronutrients- small (vitamins and minerals)
Macronutrients- proteins, lipids and carbs
The amount of sodium in the blood decreases, what would the negative feedback control mechanism be expected to do?
Increase the sodium in the blood (fight against the barrier)
List all four major elements and 3 minor elements.
Major: Oxygen, Carbon, Hydrogen, Nitrogen
Minor: Calcium, Phosphorous, Chlorine, Potassium, Sulfer, Sodium, Magnesium, Iodine, Iron
What is the best description of for what a pH measures?
Concentration of hydrogen ions in a solution