BIO 230 HUMAN ANATOMY AND PHYSIOLOGY I
EXAM 1 LATEST 2025/2026 BRADLEY UNIVERSITY
ACCURATE FALL-SPRING
What significance do levels of evidence have?
Less humans involved, less believable. More humans involved, more believable.
What is an example of a less believable evidence level?
Animal/Lab studies, editorials, and expert opinions
What is an example of a more believable evidence level?
Clinical practice guidelines and meta-analysis systematic review
Basic science is
Pure science that may not result in a practical (important) application
Applied science is
Technology science that asks how can we improve?
Properties of life are
Highly organized, sensitive, and can adapt easily
Homeostasis
,Regulation to internal and external environment
Set points refer to
When the body resists change, it will work to return to a specific threshold (ex: sweat, shiver)
positive feedback loops
moves away from homeostasis, is short term
what is a good example of a positive feedback loop?
pregancy (release oxytocin, more contractions, eventually back at a homeostasis environment)
negative feedback loops
uses reactions to diminish changes and return back to a set point
what is a good example of a negative feedback loop?
sweating and shivering
as pH decreases, the number of H+ ions ______
increases
does an acid release or accept H+
release (negative OH molecule)
, does a base release or accept H+
accept (less are freely loose, accepts more)
what is the pH of blood
7.35-7.45
buffer
pair of substances that minimizes fluctuations in the pH of living organisms
how can the lungs affect the acid base balance?
- exhale CO2, less CO2, less bicarbonate (more acidic)
- inhale CO2, more CO2, more bicarbonate (more basic)
where do most chemical reactions occur?
water
solute and solvent
solution
why do solutes dissolve in water?
polar covalent bonds
what is the relationship of H+ bonds to the states of H20
- solid (many H+ bonds)
EXAM 1 LATEST 2025/2026 BRADLEY UNIVERSITY
ACCURATE FALL-SPRING
What significance do levels of evidence have?
Less humans involved, less believable. More humans involved, more believable.
What is an example of a less believable evidence level?
Animal/Lab studies, editorials, and expert opinions
What is an example of a more believable evidence level?
Clinical practice guidelines and meta-analysis systematic review
Basic science is
Pure science that may not result in a practical (important) application
Applied science is
Technology science that asks how can we improve?
Properties of life are
Highly organized, sensitive, and can adapt easily
Homeostasis
,Regulation to internal and external environment
Set points refer to
When the body resists change, it will work to return to a specific threshold (ex: sweat, shiver)
positive feedback loops
moves away from homeostasis, is short term
what is a good example of a positive feedback loop?
pregancy (release oxytocin, more contractions, eventually back at a homeostasis environment)
negative feedback loops
uses reactions to diminish changes and return back to a set point
what is a good example of a negative feedback loop?
sweating and shivering
as pH decreases, the number of H+ ions ______
increases
does an acid release or accept H+
release (negative OH molecule)
, does a base release or accept H+
accept (less are freely loose, accepts more)
what is the pH of blood
7.35-7.45
buffer
pair of substances that minimizes fluctuations in the pH of living organisms
how can the lungs affect the acid base balance?
- exhale CO2, less CO2, less bicarbonate (more acidic)
- inhale CO2, more CO2, more bicarbonate (more basic)
where do most chemical reactions occur?
water
solute and solvent
solution
why do solutes dissolve in water?
polar covalent bonds
what is the relationship of H+ bonds to the states of H20
- solid (many H+ bonds)
