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BIO 201- MIDTERM EXAM STUDY GUIDE 2026
100% PASS ASSURED EXAMINATION
SOLUTIONS
anatomy - correct answer- study of the
structure/morphology of the human body and its
parts
physiology - correct answer- study of the
functions of the human body and its parts
List the levels of organization from simplest
to most complex. - correct answer- subatomic
particles
atom
molecule
macro-molecule
organelle
cell
tissue
organ
organ system
organism
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cell - correct answer- -composed of organelles
-the basic units of structure and function of
the body
tissue - correct answer- layer or mass of
cells with specific function
organ - correct answer- group of different
tissues with a function
system/ organ system - correct answer- group
of organs with common function
homeostasis - correct answer- maintenance of a
stable internal environment
metabolism - correct answer- all of the
chemical reactions in an organism that support
life
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positive feedback loop - correct answer- -
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 - correct answer- -
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? - correct answer- 1) water
2) food
3) oxygen
4) heat
5) pressure
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1) Water - correct answer- -most abundant
substance in body
- environment for metabolic processes
-required for transport of substance
-regulation of body temperature
2) Food - correct answer- -provides necessary
nutrients
-supplies energy
-supplies raw materials for building living
tissue
3) Oxygen (gas) - correct answer- -one fifth
of air
-used to release energy from nutrients
4) Heat - correct answer- -heat is a form of
energy in out environment
- helps maintain body temperature
- partly controls rate of metabolic reactions
BIO 201- MIDTERM EXAM STUDY GUIDE 2026
100% PASS ASSURED EXAMINATION
SOLUTIONS
anatomy - correct answer- study of the
structure/morphology of the human body and its
parts
physiology - correct answer- study of the
functions of the human body and its parts
List the levels of organization from simplest
to most complex. - correct answer- subatomic
particles
atom
molecule
macro-molecule
organelle
cell
tissue
organ
organ system
organism
,2 | Page
cell - correct answer- -composed of organelles
-the basic units of structure and function of
the body
tissue - correct answer- layer or mass of
cells with specific function
organ - correct answer- group of different
tissues with a function
system/ organ system - correct answer- group
of organs with common function
homeostasis - correct answer- maintenance of a
stable internal environment
metabolism - correct answer- all of the
chemical reactions in an organism that support
life
,3 | Page
positive feedback loop - correct answer- -
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 - correct answer- -
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? - correct answer- 1) water
2) food
3) oxygen
4) heat
5) pressure
, 4 | Page
1) Water - correct answer- -most abundant
substance in body
- environment for metabolic processes
-required for transport of substance
-regulation of body temperature
2) Food - correct answer- -provides necessary
nutrients
-supplies energy
-supplies raw materials for building living
tissue
3) Oxygen (gas) - correct answer- -one fifth
of air
-used to release energy from nutrients
4) Heat - correct answer- -heat is a form of
energy in out environment
- helps maintain body temperature
- partly controls rate of metabolic reactions
