2. Cell Chemistry & Cell Components
Acids and Bases
- Multiple ChoiceAn acid is __________.3views
- Textbook Question
Mrs. Roberts, in a diabetic coma, has just been admitted to Noble Hospital. Her blood pH indicates that she is in severe acidosis (low blood pH), and measures are quickly instituted to bring her blood pH back within normal limits.
a. Define pH and note the normal pH of blood.
b. Why is severe acidosis a problem?
- Multiple ChoiceAthletes may use diuretics to help with which of the following?
- Textbook Question
Which of the following is not a property of water?
a. Water has a high heat capacity.
b. Water doesn't take heat with it when it evaporates.
c. Water is a polar solvent in which many solutes will dissolve.
d. Water serves as a cushion and lubricant in the body.
- Textbook Question
Alkaline substances include which of the following?
a. Gastric juice
b. Water
c. Blood
d. Lemon juice
e. Ammonia
1views - Multiple ChoiceAdding a base tends to __________ of a solution.2views
- Multiple ChoiceWhich of the following cells in the stomach secrete hydrochloric acid?2views
- Multiple ChoiceWhich of the following has an effect on the pH of blood?1views
- Multiple ChoiceWhich of the following is a source of fixed acids in the body?
- Textbook Question
Acids:
a. Release hydroxyl ions when dissolved in water
b. Are proton acceptors
c. Cause the pH of a solution to rise
d. Release protons when dissolved in water
1views - Multiple ChoiceWhich of the following dissociations is that of an acid?2views
- Textbook QuestionConsider the reaction between carbon dioxide and water to form carbonic acid:CO2(g)+H2O(l)⇌CH2O3(aq)In the ocean, carbonic acid immediately dissociates to form a proton and bicarbonate ion, as follows:CH2O3(aq)+H+(aq)⇌CHO3−(aq)If an underwater volcano bubbled additional CO2 into the ocean, would this sequence of reactions be driven to the left or the right? How would this affect the pH of the ocean?1views
- Multiple ChoiceAdding acid tends to __________ of a solution.1views
- Multiple ChoiceWhy is the increasing amount of carbon dioxide being taken up by the oceans a cause for concern?2views
- Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Acids dissociate in water to give hydrogen ions and an anion.
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