PHGY 216: MODULE 5 SECTION 1
Correct
Incorrect
1 of 68
Term
How does the addition of a strong base affect the pH of a solution?
Give this one a try later!
The addition of a strong base Vegetables and fruits tend to
decreases the concentration produce more bases than acids,
of free H+ ions in the solution, which helps to counter the H+
resulting in an increase in pH. formed from protein metabolism.
The stronger the acid, the higher the Changes in the amount of K+ in
concentration of hydrogen ions (H+) body fluids can cause excitable
it produces when it dissociates in cells to depolarize and become
solution. more excitable.
Don't know?
2 of 68
,Term
What is an example of an acid?
Give this one a try later!
A base is a substance that can bind
Lemons have a pH value of 2.0, free H+ and remove it from a
indicating that they are highly acidic. solution, whereas an acid donates
H+ to a solution.
An example of an acid is
A log to the base 10 indicates how
hydrochloric acid (HCl), which
many times 10 must be multiplied by
dissociates almost entirely into
itself to produce a given number.
H+ and Cl- in solution.
Don't know?
3 of 68
Term
What determines whether a substance is a strong acid or a weak
acid?
Give this one a try later!
The degree to which the H+
The stronger the acid, the higher the
dissociates in solution
concentration of hydrogen ions (H+)
determines whether a
it produces when it dissociates in
substance is a strong acid or a
solution.
weak acid
, The weak acids produced from
The usual concentration of H+ in the intermediary metabolism include
ECF is 4x10-8 moles/L, or M, which fatty acids produced during fat
is a really low concentration. metabolism and lactic acid
produced in muscles.
Don't know?
4 of 68
Definition
The pH scale was developed to express the amount of H+ in a
solution in a more convenient manner.
Give this one a try later!
What is the consequence of
What is the purpose of the pH
changes in the amount of K+ in body
scale?
fluids?
What is the relationship between
What is the main difference
acid strength and hydrogen ion
between an acid and a base?
concentration
Don't know?
5 of 68
Definition
, 1. The higher the [H+], the lower the pH, so the more acidic the
solution. Basic solutions have a higher pH since the [H+] is lower.
2. Each pH unit represents a 10-fold change in [H+] since it is a
logarithmic scale.
Give this one a try later!
What are the two important
What are the broader impacts of
points to note from the pH
acidosis on the body?
formula?
What are the three primary sources
What are the broader impacts of
of H+ production or release in the
alkalosis on the body?
body fluids?
Don't know?
6 of 68
Term
What does a pH less than 7.0 indicate about a solution?
Give this one a try later!
A pH less than 7.0 indicates
A base is a substance that can bind
that a solution has a higher
free H+ and remove it from a
concentration of hydrogen
solution, whereas an acid donates
ions (H+) than pure water,
H+ to a solution.
making it acidic.
A pH greater than 7.0 indicates that
A log to the base 10 indicates how
a solution has a lower concentration
many times 10 must be multiplied by
Correct
Incorrect
1 of 68
Term
How does the addition of a strong base affect the pH of a solution?
Give this one a try later!
The addition of a strong base Vegetables and fruits tend to
decreases the concentration produce more bases than acids,
of free H+ ions in the solution, which helps to counter the H+
resulting in an increase in pH. formed from protein metabolism.
The stronger the acid, the higher the Changes in the amount of K+ in
concentration of hydrogen ions (H+) body fluids can cause excitable
it produces when it dissociates in cells to depolarize and become
solution. more excitable.
Don't know?
2 of 68
,Term
What is an example of an acid?
Give this one a try later!
A base is a substance that can bind
Lemons have a pH value of 2.0, free H+ and remove it from a
indicating that they are highly acidic. solution, whereas an acid donates
H+ to a solution.
An example of an acid is
A log to the base 10 indicates how
hydrochloric acid (HCl), which
many times 10 must be multiplied by
dissociates almost entirely into
itself to produce a given number.
H+ and Cl- in solution.
Don't know?
3 of 68
Term
What determines whether a substance is a strong acid or a weak
acid?
Give this one a try later!
The degree to which the H+
The stronger the acid, the higher the
dissociates in solution
concentration of hydrogen ions (H+)
determines whether a
it produces when it dissociates in
substance is a strong acid or a
solution.
weak acid
, The weak acids produced from
The usual concentration of H+ in the intermediary metabolism include
ECF is 4x10-8 moles/L, or M, which fatty acids produced during fat
is a really low concentration. metabolism and lactic acid
produced in muscles.
Don't know?
4 of 68
Definition
The pH scale was developed to express the amount of H+ in a
solution in a more convenient manner.
Give this one a try later!
What is the consequence of
What is the purpose of the pH
changes in the amount of K+ in body
scale?
fluids?
What is the relationship between
What is the main difference
acid strength and hydrogen ion
between an acid and a base?
concentration
Don't know?
5 of 68
Definition
, 1. The higher the [H+], the lower the pH, so the more acidic the
solution. Basic solutions have a higher pH since the [H+] is lower.
2. Each pH unit represents a 10-fold change in [H+] since it is a
logarithmic scale.
Give this one a try later!
What are the two important
What are the broader impacts of
points to note from the pH
acidosis on the body?
formula?
What are the three primary sources
What are the broader impacts of
of H+ production or release in the
alkalosis on the body?
body fluids?
Don't know?
6 of 68
Term
What does a pH less than 7.0 indicate about a solution?
Give this one a try later!
A pH less than 7.0 indicates
A base is a substance that can bind
that a solution has a higher
free H+ and remove it from a
concentration of hydrogen
solution, whereas an acid donates
ions (H+) than pure water,
H+ to a solution.
making it acidic.
A pH greater than 7.0 indicates that
A log to the base 10 indicates how
a solution has a lower concentration
many times 10 must be multiplied by
