BSC 215 Exam 1 (UA) Practice
Questions All Answered 2026/2027
Updated.
What is the difference between anatomy and physiology? - Answer anatomy is the study of
the structure and physiology is the study of function
What are the types anatomy? - Answer gross (you can see with your bare eyes), microscopic ,
developmental, regional, surface, systemic, and embryology.
What are the types of physiology? - Answer organ and systemic physiology
What are the eight characteristics of life? - Answer homeostasis, organization, metabolism,
adaptation, response to stimuli, reproductive, growth
What is homeostasis? - Answer maintaining an stable internal environment
What is homeostastic imbalance? - Answer having too little or too much of something in the
body. For example, having to little sugar body cause weakness or dizziness; having too much
sugar can lead lead to long term damages in the body
What is negative feedback? - Answer Negative feedback loop is when the regulated variables
are brought back to normal range through the feedback system when it is has gone outside it.
What does the feedback system consist of? - Answer sensor (receptor), which detects a
change and sends the signal to the control center (has the set value that a variable should be at)
and once it receives the signal it sends it to the effector, which responds to the signal and
creates a change in the variable
How does negative feedback loop help maintain homeostasis? - Answer it helps maintain a
stable internal environment because once it notices a change and a stimulus deviates from the
set value, then it uses the feedback system to bring it back to normal range.
What is an example of negative feedback? - Answer An example of negative feedback is
shivering when cold because the body is below normal range, so the body shivers to get it part
to the normal temperature.
what is an example of positive feedback? - Answer An example of positive feedback is
childbirth labor and contraceptions or blood clots
,What is positive feedback? - Answer Positive feedback is the increases the initial stimulus on
regulated variable and then shuts off when back to normal range
What are the major structural level of organization? - Answer chemical level (molecules,
atoms), cells, tissues, organs, organ system, organism
What are the different types of tissues? - Answer connective, epithelial, nervous, and muscle
What is metabolism? - Answer all the chemical reactions where organisms build or break
down material.
What is the difference between anabolic and catabolic reactions - Answer anabolic reactions
build up complex molecules from smaller; endergonic, while catabolic reactions break down
larger molecules into smaller ones; exergonic
How do single cell and multi-celled differ in how they grow? - Answer single cells grow by
increasing in size, while multi-celled go through development which is divide into different cells.
What is the metabolism equation? - Answer Metabolism = anabolism + catabolism
What is the difference between cytology and histology - Answer cytology study cells and
histology studies tissus
define tissue - Answer group of cells that have same function
define organ - Answer two or more tissues that form an organ
what is the idea of adaption, natural, selection, and evolution? - Answer
what is a stimuli? - Answer a signal which an organism responds to a change in their
environment
The genetic code is: - Answer universal for all organisms on earth
what is the principle of complementarity of structure and function? - Answer form follows the
function
, What is an example of the form follow structure? - Answer lung tissue is thin and bc of that, it
allows gases to cross.
what is a gradient? - Answer present any time; having higher concentration in one area than
another.
what are the three examples of gradients? - Answer temperature, concentration, and
presssure gradient.
what is cell-communication? - Answer the process of cells detecting and responding to
chemical or electrical signals and triggers a response from another cell.
why is cell-communication essential? - Answer it helps maintainy homeostasis and coordinate
body functions
To what levels of organization does this relationship of structure-form apply? - Answer all
levels
What are the two major methods by which cells communicate? - Answer electrical signals that
transmitted directly from one cell to another and chemical messengers are transmitted directly
from one cell into surrounding cell
What are the 11 systems of the body? - Answer integumentary, skeletal, muscular, nervous,
endocrine, cardiovascular, lymphatic, respiratory, digestive, urinary, reproductive
what are the relative locations of electron, protons, and neutrons? - Answer protons and
neutrons are inside the nucleus and electrons are outside the nucleus in electron cloud
What are the four major elements in the human body? - Answer carbon, hydrogen, nitrogen,
oxygen
What is the difference between atomic number and atomic mass? - Answer atomic number is
the proton number and atomic mass is the proton + neutrons
What are isotopes? - Answer Atoms of the same element with different numbers of neutrons
What are radioisotopes? - Answer unstable isotopes
What subatomic particles make up an atom? - Answer protons, neutrons, electrons
Questions All Answered 2026/2027
Updated.
What is the difference between anatomy and physiology? - Answer anatomy is the study of
the structure and physiology is the study of function
What are the types anatomy? - Answer gross (you can see with your bare eyes), microscopic ,
developmental, regional, surface, systemic, and embryology.
What are the types of physiology? - Answer organ and systemic physiology
What are the eight characteristics of life? - Answer homeostasis, organization, metabolism,
adaptation, response to stimuli, reproductive, growth
What is homeostasis? - Answer maintaining an stable internal environment
What is homeostastic imbalance? - Answer having too little or too much of something in the
body. For example, having to little sugar body cause weakness or dizziness; having too much
sugar can lead lead to long term damages in the body
What is negative feedback? - Answer Negative feedback loop is when the regulated variables
are brought back to normal range through the feedback system when it is has gone outside it.
What does the feedback system consist of? - Answer sensor (receptor), which detects a
change and sends the signal to the control center (has the set value that a variable should be at)
and once it receives the signal it sends it to the effector, which responds to the signal and
creates a change in the variable
How does negative feedback loop help maintain homeostasis? - Answer it helps maintain a
stable internal environment because once it notices a change and a stimulus deviates from the
set value, then it uses the feedback system to bring it back to normal range.
What is an example of negative feedback? - Answer An example of negative feedback is
shivering when cold because the body is below normal range, so the body shivers to get it part
to the normal temperature.
what is an example of positive feedback? - Answer An example of positive feedback is
childbirth labor and contraceptions or blood clots
,What is positive feedback? - Answer Positive feedback is the increases the initial stimulus on
regulated variable and then shuts off when back to normal range
What are the major structural level of organization? - Answer chemical level (molecules,
atoms), cells, tissues, organs, organ system, organism
What are the different types of tissues? - Answer connective, epithelial, nervous, and muscle
What is metabolism? - Answer all the chemical reactions where organisms build or break
down material.
What is the difference between anabolic and catabolic reactions - Answer anabolic reactions
build up complex molecules from smaller; endergonic, while catabolic reactions break down
larger molecules into smaller ones; exergonic
How do single cell and multi-celled differ in how they grow? - Answer single cells grow by
increasing in size, while multi-celled go through development which is divide into different cells.
What is the metabolism equation? - Answer Metabolism = anabolism + catabolism
What is the difference between cytology and histology - Answer cytology study cells and
histology studies tissus
define tissue - Answer group of cells that have same function
define organ - Answer two or more tissues that form an organ
what is the idea of adaption, natural, selection, and evolution? - Answer
what is a stimuli? - Answer a signal which an organism responds to a change in their
environment
The genetic code is: - Answer universal for all organisms on earth
what is the principle of complementarity of structure and function? - Answer form follows the
function
, What is an example of the form follow structure? - Answer lung tissue is thin and bc of that, it
allows gases to cross.
what is a gradient? - Answer present any time; having higher concentration in one area than
another.
what are the three examples of gradients? - Answer temperature, concentration, and
presssure gradient.
what is cell-communication? - Answer the process of cells detecting and responding to
chemical or electrical signals and triggers a response from another cell.
why is cell-communication essential? - Answer it helps maintainy homeostasis and coordinate
body functions
To what levels of organization does this relationship of structure-form apply? - Answer all
levels
What are the two major methods by which cells communicate? - Answer electrical signals that
transmitted directly from one cell to another and chemical messengers are transmitted directly
from one cell into surrounding cell
What are the 11 systems of the body? - Answer integumentary, skeletal, muscular, nervous,
endocrine, cardiovascular, lymphatic, respiratory, digestive, urinary, reproductive
what are the relative locations of electron, protons, and neutrons? - Answer protons and
neutrons are inside the nucleus and electrons are outside the nucleus in electron cloud
What are the four major elements in the human body? - Answer carbon, hydrogen, nitrogen,
oxygen
What is the difference between atomic number and atomic mass? - Answer atomic number is
the proton number and atomic mass is the proton + neutrons
What are isotopes? - Answer Atoms of the same element with different numbers of neutrons
What are radioisotopes? - Answer unstable isotopes
What subatomic particles make up an atom? - Answer protons, neutrons, electrons
