GTCC BIO 168 TEST 1 CHAPTERS 1-4 QUESTIONS WITH CORRECT ANSWERS LATEST UPDATE
2026
Anatomy - Answers Study of structure
Physiology - Answers Study of function
6 levels of organization - Answers Atomic, cellular, tissue, organ, organ system, organism
Tissue definition - Answers Groups of cells with a primary function
Organ definition - Answers Groups of cells with many functions
Organism definition - Answers Multiple organ systems working together to maintain the life
form
Homeostasis - Answers levels of organization working together to create a stable environment
Receptor - Answers Senses a stimulus
Control Center - Answers Received information from the receptor and processes the stimulus
Effector - Answers Responds to the control center's indication
Feedback Mechanisms - Answers The control of biological reactions by the end product of those
reactants (Positive and Negative)
Negative Feedback - Answers Stimulus produces a response that negates the original stimulus
(Ex- Dog barks, we yell, dog stops barking)
Positive Feedback - Answers Stimulus produces a response that enhances the original stimulus
(Ex- Get a cut, blood clots, blood keeps clotting until the cut is sealed)
Anatomical Landmarks definition - Answers Palpable structures that are universal landmarks for
identification or areas of interest/injury
Abdominopelvic Regions - Answers
Abdominopelvic Quadrants - Answers
Anatomical Directions - Answers directional terms used for identification purposes
Transverse Plane - Answers Divides superior and inferior
Frontal Plane - Answers Divides anterior and posterior
Saggital plane - Answers Divides left and right
, Body Cavities - Answers Chambers lined by serous membranes
Ventral Body Cavities - Answers Thoracic (Holds upper cavities including L& R Pleural,
Mediastinum, and Pericardial) and Abdominopelvic (holds inferior cavities including pelvic and
abdominal)
Visceral - Answers Close to
Parietal - Answers Far from
Peritoneum - Answers Lining of the abdominal cavity
Pericardium - Answers Lining of the pericardial cavity
Matter - Answers Anything that has mass and takes up space
Mass - Answers The amount of matter in an object
Weight - Answers A measure of the force of gravity on an object
Elements - Answers The simplest chemical substance
Atoms - Answers smallest unit of matter
Protons - Answers Positively charged subatomic particles found in the nucleus of an atom
Neutrons - Answers Uncharged subatomic particle; found in the atomic nucleus
Electrons - Answers Negatively charged subatomic particles found in the electron cloud
Mass Number - Answers mass of an atom equal to the number of protons + the number of
neutrons
Atomic Mass/Weight - Answers Actual mass of an atom written below the element on the
periodic table
Atomic Number - Answers Defines the element and describes the number of protons
Isotopes - Answers The varied atomic forms of an element
Half-Life - Answers Length of time required for half of the radioactive atoms in a sample to
decay
Valance Electrons - Answers The electrons in the outermost shell of an atom
Chemical Bond - Answers Attraction between atoms caused by the transferring or sharing of
valence electrons
Covalent Bond - Answers A stable chemical bond formed when two atoms share electrons
2026
Anatomy - Answers Study of structure
Physiology - Answers Study of function
6 levels of organization - Answers Atomic, cellular, tissue, organ, organ system, organism
Tissue definition - Answers Groups of cells with a primary function
Organ definition - Answers Groups of cells with many functions
Organism definition - Answers Multiple organ systems working together to maintain the life
form
Homeostasis - Answers levels of organization working together to create a stable environment
Receptor - Answers Senses a stimulus
Control Center - Answers Received information from the receptor and processes the stimulus
Effector - Answers Responds to the control center's indication
Feedback Mechanisms - Answers The control of biological reactions by the end product of those
reactants (Positive and Negative)
Negative Feedback - Answers Stimulus produces a response that negates the original stimulus
(Ex- Dog barks, we yell, dog stops barking)
Positive Feedback - Answers Stimulus produces a response that enhances the original stimulus
(Ex- Get a cut, blood clots, blood keeps clotting until the cut is sealed)
Anatomical Landmarks definition - Answers Palpable structures that are universal landmarks for
identification or areas of interest/injury
Abdominopelvic Regions - Answers
Abdominopelvic Quadrants - Answers
Anatomical Directions - Answers directional terms used for identification purposes
Transverse Plane - Answers Divides superior and inferior
Frontal Plane - Answers Divides anterior and posterior
Saggital plane - Answers Divides left and right
, Body Cavities - Answers Chambers lined by serous membranes
Ventral Body Cavities - Answers Thoracic (Holds upper cavities including L& R Pleural,
Mediastinum, and Pericardial) and Abdominopelvic (holds inferior cavities including pelvic and
abdominal)
Visceral - Answers Close to
Parietal - Answers Far from
Peritoneum - Answers Lining of the abdominal cavity
Pericardium - Answers Lining of the pericardial cavity
Matter - Answers Anything that has mass and takes up space
Mass - Answers The amount of matter in an object
Weight - Answers A measure of the force of gravity on an object
Elements - Answers The simplest chemical substance
Atoms - Answers smallest unit of matter
Protons - Answers Positively charged subatomic particles found in the nucleus of an atom
Neutrons - Answers Uncharged subatomic particle; found in the atomic nucleus
Electrons - Answers Negatively charged subatomic particles found in the electron cloud
Mass Number - Answers mass of an atom equal to the number of protons + the number of
neutrons
Atomic Mass/Weight - Answers Actual mass of an atom written below the element on the
periodic table
Atomic Number - Answers Defines the element and describes the number of protons
Isotopes - Answers The varied atomic forms of an element
Half-Life - Answers Length of time required for half of the radioactive atoms in a sample to
decay
Valance Electrons - Answers The electrons in the outermost shell of an atom
Chemical Bond - Answers Attraction between atoms caused by the transferring or sharing of
valence electrons
Covalent Bond - Answers A stable chemical bond formed when two atoms share electrons
