BIOL 203
BIOL 203 Exam 1 Study Questions and
Answers Graded A+ 2026
What is the smallest unit of an organism that can carry out all the functions of life? -
Correct Answer ✔-Cell
In performing a physical examination, the act of listening to sounds made by the body is
known as -Correct Answer ✔-Auscultation
Which can be revealed through percussion during a medical exam? -Correct Answer ✔-
Pockets of fluid, scar tissue, pockets of air
When a doctor feels for a swollen lymph node, what action is she using in her exam? -
Correct Answer ✔-Palpation
When some bodily changes are detected, responses are activated that reverse the
change, restoring stability and preserving normal body function. This would be an
example of what type of feedback? -Correct Answer ✔-Negative
In a solution, the more abundant substance that dissolves another substance is known
as what? -Correct Answer ✔-Solvent
The term for the process of carefully separating tissues to reveal anatomical
relationships is -Correct Answer ✔-Dissection
What is a cell or organ that is specialized to detect a stimulus called? -Correct Answer
✔-Receptor
Solvency, cohesion, adhesion, hydrogen bonding, chemical reactivity, and thermal
stability are all important properties of -Correct Answer ✔-Water
What is the cell or organ that directly carries out a response to a stimulus called? -
Correct Answer ✔-Effector
What is the act of tapping the body to feel for abnormal resistance or listen for sounds
called? -Correct Answer ✔-Percussion
Taking a pulse by feeling the radial artery is an example of which of the following? -
Correct Answer ✔-Palpation
What is an example of a physiological negative feedback mechanism? -Correct Answer
✔-Body temperature
BIOL 203
,BIOL 203
Which are the important properties of water that allow it to support life? -Correct Answer
✔-Solvency, chemical reactivity, cohesion
A structure that carries out a response to a stimulus is called a(n) -Correct Answer ✔-
Effector
Anatomy -Correct Answer ✔-The study of body structure
Students are studying how the heart pumps blood through the body, which is its major
function. They are studying the ______ of the heart. -Correct Answer ✔-Physiology
Cytology -Correct Answer ✔-Study of he structure and the function of cells
Physiology -Correct Answer ✔-The study of body function
What feedback mechanism controls the blood pressure? -Correct Answer ✔-Negative
feedback
The ability of water to dissolve other chemicals is ______. -Correct Answer ✔-Solvency
What is the act of looking at the body called? -Correct Answer ✔-Inspection
What is gross anatomy? -Correct Answer ✔-The study of body structures that can be
observed without magnification
In which of the following does a surgeon learn a procedure on animals before practicing
on humans? -Correct Answer ✔-Comparative physiology
What is a group of organs with a unique collective function called? -Correct Answer ✔-
Organ system
What is an anatomical structure that is composed of at least two different tissue types,
has recognizable structural boundaries, and has a discrete function different from the
structures around it called? -Correct Answer ✔-Organ
Which is an example of a class of tissue? -Correct Answer ✔-Connective
What is a microscopic structure in a cell that carries out individual functions called? -
Correct Answer ✔-Organelle
A molecule of large size and high molecular weight, such as a protein, is called a(n). -
Correct Answer ✔-Macromolecule
BIOL 203
, BIOL 203
The ability to maintain a relatively stable internal environment in spite of changes in the
external environment is known as -Correct Answer ✔-Homeostasis
Medical mistakes, such as prescribing the wrong dose of medication, can result from
failure to consider -Correct Answer ✔-Physical Variation
What type of equilibrium occurs when there is a set average point and conditions
fluctuate around that point? -Correct Answer ✔-Dynamic
Contractions during childbirth is an example of which feedback? -Correct Answer ✔-
Positive feedback
Without the expenditure of energy, the net movement of matter in a physiological
gradient will always be from a region of ______ concentration to a region of ______
concentration. -Correct Answer ✔-Higher to Lower
The amount of thermal energy that will raise the temperature of 1 g of water by 1°C
defines which unit? -Correct Answer ✔-Calorie
What are examples of a positive feedback mechanism? -Correct Answer ✔-
Contractions during childbirth, formation of a blood clot
Without the use of energy, matter and energy tend to flow ______. -Correct Answer ✔-
Down gradients
Isotope -Correct Answer ✔-Atoms of the same element that have different numbers of
neutrons
Ion -Correct Answer ✔-A charged atom or molecule
Acid -Correct Answer ✔-Compound that forms hydrogen ions (H+) in solution; a proton
donor
Base -Correct Answer ✔-A substance that decreases the hydrogen ion concentration in
a solution; proton acceptor
Mono/disaccharides, glycogen are examples of?? -Correct Answer ✔-Carbs
Fatty acids, triglyceride, phospholipids are examples of?? -Correct Answer ✔-Lipids
Polypeptides, amylase, collagen are examples of? -Correct Answer ✔-Proteins
Primary structure of protein -Correct Answer ✔-The amino acid sequence of the
polypeptide chain
BIOL 203
BIOL 203 Exam 1 Study Questions and
Answers Graded A+ 2026
What is the smallest unit of an organism that can carry out all the functions of life? -
Correct Answer ✔-Cell
In performing a physical examination, the act of listening to sounds made by the body is
known as -Correct Answer ✔-Auscultation
Which can be revealed through percussion during a medical exam? -Correct Answer ✔-
Pockets of fluid, scar tissue, pockets of air
When a doctor feels for a swollen lymph node, what action is she using in her exam? -
Correct Answer ✔-Palpation
When some bodily changes are detected, responses are activated that reverse the
change, restoring stability and preserving normal body function. This would be an
example of what type of feedback? -Correct Answer ✔-Negative
In a solution, the more abundant substance that dissolves another substance is known
as what? -Correct Answer ✔-Solvent
The term for the process of carefully separating tissues to reveal anatomical
relationships is -Correct Answer ✔-Dissection
What is a cell or organ that is specialized to detect a stimulus called? -Correct Answer
✔-Receptor
Solvency, cohesion, adhesion, hydrogen bonding, chemical reactivity, and thermal
stability are all important properties of -Correct Answer ✔-Water
What is the cell or organ that directly carries out a response to a stimulus called? -
Correct Answer ✔-Effector
What is the act of tapping the body to feel for abnormal resistance or listen for sounds
called? -Correct Answer ✔-Percussion
Taking a pulse by feeling the radial artery is an example of which of the following? -
Correct Answer ✔-Palpation
What is an example of a physiological negative feedback mechanism? -Correct Answer
✔-Body temperature
BIOL 203
,BIOL 203
Which are the important properties of water that allow it to support life? -Correct Answer
✔-Solvency, chemical reactivity, cohesion
A structure that carries out a response to a stimulus is called a(n) -Correct Answer ✔-
Effector
Anatomy -Correct Answer ✔-The study of body structure
Students are studying how the heart pumps blood through the body, which is its major
function. They are studying the ______ of the heart. -Correct Answer ✔-Physiology
Cytology -Correct Answer ✔-Study of he structure and the function of cells
Physiology -Correct Answer ✔-The study of body function
What feedback mechanism controls the blood pressure? -Correct Answer ✔-Negative
feedback
The ability of water to dissolve other chemicals is ______. -Correct Answer ✔-Solvency
What is the act of looking at the body called? -Correct Answer ✔-Inspection
What is gross anatomy? -Correct Answer ✔-The study of body structures that can be
observed without magnification
In which of the following does a surgeon learn a procedure on animals before practicing
on humans? -Correct Answer ✔-Comparative physiology
What is a group of organs with a unique collective function called? -Correct Answer ✔-
Organ system
What is an anatomical structure that is composed of at least two different tissue types,
has recognizable structural boundaries, and has a discrete function different from the
structures around it called? -Correct Answer ✔-Organ
Which is an example of a class of tissue? -Correct Answer ✔-Connective
What is a microscopic structure in a cell that carries out individual functions called? -
Correct Answer ✔-Organelle
A molecule of large size and high molecular weight, such as a protein, is called a(n). -
Correct Answer ✔-Macromolecule
BIOL 203
, BIOL 203
The ability to maintain a relatively stable internal environment in spite of changes in the
external environment is known as -Correct Answer ✔-Homeostasis
Medical mistakes, such as prescribing the wrong dose of medication, can result from
failure to consider -Correct Answer ✔-Physical Variation
What type of equilibrium occurs when there is a set average point and conditions
fluctuate around that point? -Correct Answer ✔-Dynamic
Contractions during childbirth is an example of which feedback? -Correct Answer ✔-
Positive feedback
Without the expenditure of energy, the net movement of matter in a physiological
gradient will always be from a region of ______ concentration to a region of ______
concentration. -Correct Answer ✔-Higher to Lower
The amount of thermal energy that will raise the temperature of 1 g of water by 1°C
defines which unit? -Correct Answer ✔-Calorie
What are examples of a positive feedback mechanism? -Correct Answer ✔-
Contractions during childbirth, formation of a blood clot
Without the use of energy, matter and energy tend to flow ______. -Correct Answer ✔-
Down gradients
Isotope -Correct Answer ✔-Atoms of the same element that have different numbers of
neutrons
Ion -Correct Answer ✔-A charged atom or molecule
Acid -Correct Answer ✔-Compound that forms hydrogen ions (H+) in solution; a proton
donor
Base -Correct Answer ✔-A substance that decreases the hydrogen ion concentration in
a solution; proton acceptor
Mono/disaccharides, glycogen are examples of?? -Correct Answer ✔-Carbs
Fatty acids, triglyceride, phospholipids are examples of?? -Correct Answer ✔-Lipids
Polypeptides, amylase, collagen are examples of? -Correct Answer ✔-Proteins
Primary structure of protein -Correct Answer ✔-The amino acid sequence of the
polypeptide chain
BIOL 203
