Levels of Organization
The lowest level of organization capable of performing all necessary life functions.
What is a Cell?
This type of feedback reduces deviation from a set point.
What is negative feedback?
The plane that divides the body into left and right portions.
What is the sagittal plane?
The number of protons in an atom is called this.
What is the atomic number?
The reaction that joins monomers by removing water.
What is dehydration synthesis?
Tissues combine to form this structural level.
What is an Organ?
The three required components of a homeostatic control system.
What are a receptor, control center, and effector?
The cavity that contains both the lungs and the heart.
What is the thoracic cavity?
Atoms that differ in neutron number are called this.
What are isotopes?
The reaction that breaks polymers by adding water.
What is hydrolysis?
This level of organization consists of two or more organ systems working together.
What is an Organism?
In thermoregulation, sweat glands function as this component.
What is an effector?
Appendicitis is most commonly localized to this quadrant.
What is the right lower quadrant (RLQ)?
A bond formed by unequal sharing of electrons.
What is a polar covalent bond?
A change from pH 7 to pH 6 represents this fold increase in hydrogen ion concentration.
What is a 10-fold increase?
Loss of plasma membrane integrity would first disrupt this level of organization.
What is the cellular level?
Childbirth is an example of this type of feedback mechanism.
What is positive feedback?
The region directly inferior to the epigastric region.
What is the umbilical region?
An atom that gains an electron becomes this type of ion.
What is an anion?
The level of protein structure determined by amino acid sequence.
What is the primary structure?
The ability to maintain a relatively stable internal environment is called this.
What is homeostasis?
If receptors fail to detect a stimulus, which component of the feedback loop fails first?
What is a receptor?
The top row of the nine-region system consists of these three regions.
What are the right hypochondriac, epigastric, and left hypochondriac regions?
The type of intermolecular force responsible for water’s surface tension.
What are hydrogen bonds?
The lipid that forms the structural basis of the plasma membrane.
What is a phospholipid?