pH Information | Jan.9 Flashcards
Questions for pH
How much of the human body is made up of water?
70%.
Why is hydrogen important in the human body?
Operates in the metabolic and chemical reactions of the human body.
Acid base balance, cellular respiration into energy (ATP), and contribution to the water in your body.
When water dissociates (molecule comes apart), what does it form?
Forms Alkaline (Hydroxl Ion, OH-) and Acid (Hydrogen Ion, H+).
What relationship does the pH scale describe?
The relationship between the concentrates the dissociated atom of H20.
What does “p” and “H” stand for?
potenial (of) Hydrogen.
If you have more hydrogen ions, the solution is what? If you have fewer hydrogen ions, what is the solution now?
Greater amount of Hydron Ions results in a more acidic solution, the fewer the Hydrogen Ions the more alkaline (base/basic) the solution is.
What is the pH of pure water? What do we call that specific pH?
pure Water has a pH of 7. The pH is called neutral.
What is the pH of rainwater? What can increase the acidity of rainwater?
pH of rainwater is 5 (100x more acidic than pure water), its acidity can increase due to Sulfur Dioxides and Nitrogen Oxides from power plants and Automobiles.
When the pH scale changes by one number, such as pH5 to pH4, how much of a change has occurred? If the change is two numbers, such as pH5 to pH3, now how much of change has occurred?
A difference of one number denotes a change of 10x. Since the change is exponential the next change would 10^2 or 100x.
So that means a solution of pH5 is _____________ times less ____________ than a solution of pH4 and a solution of pH6 is _________________ times more ________________than a solution of pH4.
10 times less ACIDIC than a solution of pH4 and a solution of pH6 is 100 times more ALKALINE than a solution of pH4.
What pH number is the most alkaline (basic) and what number is the most acidic?
pH14 as the most Alkaline, pH0 the most Acidic.
Why does your body use up oxygen during exercise (or during any activity of life)?
The use of oxygen results in the conversion of chemical energy from glucose to mechanical energy.
Through aerobic respiration glucose is combined with oxygen to produce energy, CO2, and water. This then allows your body to generate large amounts of ATP, the primary energy currency of cells.
Where does CO2 in your body come from?
Byproduct created during the breaking down of glucose.
What occurs if your blood pH drops below pH 7.4? At what pH can death occur? What is the normal range of blood pH?
This condition is called Acidosis. Below or about the ph of 6.8 and 7.8 death may occur. The normal pH range of blood is 7.35 - 7.45.
Acidosis can result in the impaired function of the lungs, cause general respitory disease, and muscle weakness.
What is homeostasis?
Dynamic constancy of internal body environment maintained through physiological regulatory mechanisms.
