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Questions and Answers
What is the primary purpose of a hemocytometer?
What is the primary purpose of a hemocytometer?
- To prepare a sample for microscopy
- To dilute a sample
- To count blood cells (correct)
- To measure the volume of a liquid
What is a key feature of a hemocytometer?
What is a key feature of a hemocytometer?
- It has a microscopic grid etched on the glass surface (correct)
- It has a microscope attached to it
- It can be used to measure pH levels
- It has a single counting chamber
What does the dilution factor formula calculate?
What does the dilution factor formula calculate?
- The volume of the original sample
- The concentration of the original sample
- The ratio of the volume of the sample to the volume of the diluting fluid (correct)
- The volume of the diluted sample
What is an advantage of using a pipette?
What is an advantage of using a pipette?
What is the purpose of the microscopic grid on a hemocytometer?
What is the purpose of the microscopic grid on a hemocytometer?
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Study Notes
Laboratory Tools
- Pipettes are used to measure volumes of liquid precisely and accurately.
Hemocytometers
- Hemocytometers were developed for counting blood cells.
- A hemocytometer has two counting chambers.
- Each chamber has a microscopic grid etched on the glass surface.
Dilution Factor
- The formula to calculate the dilution factor is: (Volume of sample + Volume of diluting fluid) / Volume of sample.
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