20 Questions
Which statement is true about the pH scale?
pH ranges from 0 to 10.
What type of solution has a pH of 2?
Stomach acid
In terms of pH, which body compartment is slightly basic?
Blood
Why is pH important in the body?
It can affect protein structure and the structure of other molecules.
What is the pH of a neutral solution like pure water?
7
Acids have a high pH and low hydrogen ion concentration.
False
A solution with a pH of 3 is more acidic than a solution with a pH of 5.
True
The stomach, with a pH around 7, is considered slightly basic.
False
Pure water has an equal concentration of hydrogen ions and hydroxide ions.
True
Blood has a pH range between 7.35 and 7.45, making it slightly acidic.
False
Acids have a low pH (less than 7) and high ______ ion concentration
hydrogen
In neutral solutions like pure water, the pH is ______
7
The pH of blood is slightly ______
basic
The stomach is very ______
acidic
PH can impact protein structure and the structure of other molecules by affecting their 3D ______
structure
Match the body compartment with its corresponding pH range:
Blood = pH 7.35-7.45 Stomach = pH around 2 Skin = pH around 5 Saliva = pH around 6.5
Match the solution type with its pH value:
Acidic solution = pH of 3 Neutral solution = pH of 7 Slightly basic solution = pH of 8 Strongly basic solution = pH of 12
Match the pH level with its corresponding hydrogen ion concentration:
pH 3 = High hydrogen ion concentration pH 9 = Low hydrogen ion concentration pH 5 = Moderate hydrogen ion concentration pH 12 = Very low hydrogen ion concentration
Match the statement with the correct description:
Acids have a low pH (less than 7) = High hydrogen ion concentration Bases have a high pH (greater than 7) = Low hydrogen ion concentration In neutral solutions like pure water, the pH is 7 = Equal hydrogen ion and hydroxide ion concentrations The stomach has a pH around 2 = Very acidic in nature
Match the following pH values with their impact on protein structure:
pH 4 = Denaturation of proteins pH 7.4 = Optimal protein structure maintenance pH 10 = Altered protein folding pH 2 = Complete disruption of protein structure
Study Notes
- pH is related to the hydrogen ion concentration of a solution, with a logarithmic relationship and ranges from 0 to 14.
- Acids have a low pH (less than 7) and high hydrogen ion concentration, while bases have a high pH (greater than 7) and low hydrogen ion concentration.
- In neutral solutions like pure water, the pH is 7, with equal hydrogen ion and hydroxide ion concentrations.
- The pH of different body compartments varies, with blood being slightly basic (pH 7.35-7.45) and the stomach being very acidic (pH around 2).
- pH is important in the body as it can impact protein structure and the structure of other molecules by affecting their 3D structure.
Learn about the concept of pH, its logarithmic relationship with hydrogen ion concentration, and its significance in the body. Explore how acids, bases, and neutral solutions are classified based on their pH levels.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
