PBS

Which is the Pulmonic Valve?

• D

• F

• L

• N

Which is the Mitral Valve?

• D

• F

• L

• N

Which is the Left Atrium?

• C

• E

• K

• M

What does PBS stand for in a scientific context?

• Phosphate Buffered Saline

• Polymerase Binding Site

• Protein Binding Solution

• Photonic Band Structure

Which of the following is a primary use of PBS in laboratory settings?

• As a nutrient medium for bacteria

• As a buffer solution in biological research

• As a solvent for organic reactions

• As a catalyst in chemical reactions

What is the pH range of a typical PBS solution?

• 2.0 - 3.0

• 5.5 - 6.5

• 7.2 - 7.4

• 8.5 - 9.5

PBS is often used in cell culture. What is its main role?

• To provide nutrients to cells

• To maintain osmotic balance

• To act as a growth factor

• To serve as an antibiotic

Which component is NOT typically found in PBS?

• Sodium chloride

• Potassium chloride

• Calcium chloride

• Sodium phosphate

Why is PBS preferred over water for washing cells in experiments?

• It is more acidic

• It maintains isotonic conditions

• It is cheaper

• It is more reactive

In the preparation of PBS, which of the following is adjusted to achieve the desired pH?

• Concentration of sodium chloride

• Concentration of potassium chloride

• Concentration of sodium phosphate

• Concentration of calcium chloride