BIO 201- Midterm Exam Study Guide
with Correct Answers|| GRADED A+||
LATEST UPDATE 2026/27
anatomy -CORRECTANSWER study of the structure/morphology of the human body
and its parts
physiology -CORRECTANSWER study of the functions of the human body and its parts
List the levels of organization from simplest to most complex. -CORRECTANSWER
subatomic particles
atom
molecule
macro-molecule
organelle
cell
tissue
organ
organ system
organism
cell -CORRECTANSWER -composed of organelles
-the basic units of structure and function of the body
,tissue -CORRECTANSWER layer or mass of cells with specific function
organ -CORRECTANSWER group of different tissues with a function
system/ organ system -CORRECTANSWER group of organs with common function
homeostasis -CORRECTANSWER maintenance of a stable internal environment
metabolism -CORRECTANSWER all of the chemical reactions in an organism that
support life
positive feedback loop -CORRECTANSWER -homeostatic mechanism
-response enhances or exaggerates original stimulus
-uncommon in body
-short lived
-examples are contractions in labor by oxytocin and platelet plug formation+ blood
clotting
negative feedback loop -CORRECTANSWER -homeostatic mechanism
-most feedbacks in the body
-response reduces or shuts off original stimulus/ goes in opposite direction
-examples are regulation of body temperature, regulation of blood glucose by insulin
,Human life depends on what 5 environmental factors? -CORRECTANSWER 1) water
2) food
3) oxygen
4) heat
5) pressure
1) Water -CORRECTANSWER -most abundant substance in body
- environment for metabolic processes
-required for transport of substance
-regulation of body temperature
2) Food -CORRECTANSWER -provides necessary nutrients
-supplies energy
-supplies raw materials for building living tissue
3) Oxygen (gas) -CORRECTANSWER -one fifth of air
-used to release energy from nutrients
4) Heat -CORRECTANSWER -heat is a form of energy in out environment
- helps maintain body temperature
- partly controls rate of metabolic reactions
, 5) Pressure -CORRECTANSWER -application of force on an object
- atmospheric pressure// important for breathing
-hydrostatic pressure// keeps blood flowing
Identify the parts of a basic homeostatic mechanism. -CORRECTANSWER 1) receptor
2) control center
3) effector
1) receptor -CORRECTANSWER detects and provides information about the stimuli
2) control center -CORRECTANSWER decision- maker that maintains the set point
3) effector -CORRECTANSWER muscle or gland that responds to the control center
and causes the necessary change in the internal enviroment
Organ systems in the human body
-basic functions and major organs -CORRECTANSWER integumentary
skeletal
muscular
nervous
endocrine
cardiovascular
lymphatic
with Correct Answers|| GRADED A+||
LATEST UPDATE 2026/27
anatomy -CORRECTANSWER study of the structure/morphology of the human body
and its parts
physiology -CORRECTANSWER study of the functions of the human body and its parts
List the levels of organization from simplest to most complex. -CORRECTANSWER
subatomic particles
atom
molecule
macro-molecule
organelle
cell
tissue
organ
organ system
organism
cell -CORRECTANSWER -composed of organelles
-the basic units of structure and function of the body
,tissue -CORRECTANSWER layer or mass of cells with specific function
organ -CORRECTANSWER group of different tissues with a function
system/ organ system -CORRECTANSWER group of organs with common function
homeostasis -CORRECTANSWER maintenance of a stable internal environment
metabolism -CORRECTANSWER all of the chemical reactions in an organism that
support life
positive feedback loop -CORRECTANSWER -homeostatic mechanism
-response enhances or exaggerates original stimulus
-uncommon in body
-short lived
-examples are contractions in labor by oxytocin and platelet plug formation+ blood
clotting
negative feedback loop -CORRECTANSWER -homeostatic mechanism
-most feedbacks in the body
-response reduces or shuts off original stimulus/ goes in opposite direction
-examples are regulation of body temperature, regulation of blood glucose by insulin
,Human life depends on what 5 environmental factors? -CORRECTANSWER 1) water
2) food
3) oxygen
4) heat
5) pressure
1) Water -CORRECTANSWER -most abundant substance in body
- environment for metabolic processes
-required for transport of substance
-regulation of body temperature
2) Food -CORRECTANSWER -provides necessary nutrients
-supplies energy
-supplies raw materials for building living tissue
3) Oxygen (gas) -CORRECTANSWER -one fifth of air
-used to release energy from nutrients
4) Heat -CORRECTANSWER -heat is a form of energy in out environment
- helps maintain body temperature
- partly controls rate of metabolic reactions
, 5) Pressure -CORRECTANSWER -application of force on an object
- atmospheric pressure// important for breathing
-hydrostatic pressure// keeps blood flowing
Identify the parts of a basic homeostatic mechanism. -CORRECTANSWER 1) receptor
2) control center
3) effector
1) receptor -CORRECTANSWER detects and provides information about the stimuli
2) control center -CORRECTANSWER decision- maker that maintains the set point
3) effector -CORRECTANSWER muscle or gland that responds to the control center
and causes the necessary change in the internal enviroment
Organ systems in the human body
-basic functions and major organs -CORRECTANSWER integumentary
skeletal
muscular
nervous
endocrine
cardiovascular
lymphatic
