Hemocytometer MCQ Quiz Questions And Answers

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  • 1/10 Questions

    A hemocytometer is a special counting chamber designed for counting _______.

    • Bones
    • Blood cells
    • Nerves
    • Pulse rate
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About This Quiz

Do you know about the functionality of the hemocytometer? To test your knowledge on this, you can take this hemocytometer quiz. Hemocytometer plays a vital role when it comes to human biology. If you believe you know everything about this term, this test will be an add-on to your knowledge. You can practice here; even if you miss out on something, we will help you with the answers. All the best! Hope you get a perfect score on this quiz.

Hemocytometer MCQ Quiz Questions And Answers - Quiz

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  • 2. 

    Where are white blood cells counted?

    • The middle square

    • The 3 left squares and 3 right squares

    • The squares in the corners

    • The 3 top squares and 3 bottom squares

    Correct Answer
    A. The squares in the corners
    Explanation
    White blood cells are counted in the squares in the corners. This is because the corners of the grid are less likely to have overlapping cells, allowing for a more accurate count. Additionally, counting the cells in the corners ensures that all areas of the grid are accounted for, providing a comprehensive assessment of the white blood cell count.

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  • 3. 

    What is the dilution factor for red blood cells?

    • 1:300

    • 1:200

    • 1:100

    • 1:50

    Correct Answer
    A. 1:200
    Explanation
    The dilution factor for red blood cells is 1:200. This means that one part of the red blood cells is diluted with 200 parts of a diluent.

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  • 4. 

    What squares are used when counting red blood cells?

    • The corner squares

    • The middle top square and middle bottom square

    • The 3 squares on the left and the 3 squares on the right

    • The middle square

    Correct Answer
    A. The middle square
    Explanation
    The question is asking which squares are used when counting red blood cells. The correct answer is the middle square. This suggests that when counting red blood cells, only the middle square is considered.

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  • 5. 

    Hemoglobin takes up what number of molecules of oxygen?

    • 1

    • 2

    • 3

    • 4

    Correct Answer
    A. 4
    Explanation
    Hemoglobin takes up four molecules of oxygen.

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  • 6. 

    What is the dilution factor for white blood cells?

    • 1:100

    • 1:50

    • 1:20

    • 1:10

    Correct Answer
    A. 1:20
    Explanation
    The dilution factor for white blood cells is 1:20. This means that the sample is diluted 20 times before analysis. Dilution is often done to reduce the concentration of a substance in a sample, making it easier to work with or analyze. In this case, the white blood cells are being diluted to a ratio of 1 part sample to 20 parts diluent.

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  • 7. 

    When counting white blood cells, what is the volume of each square?

    • 0.02mm³

    • 0.01mm³

    • 0.2mm³

    • 0.1mm³

    Correct Answer
    A. 0.1mm³
    Explanation
    The volume of each square when counting white blood cells is 0.1mm³.

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  • 8. 

    What is the volume of one triple-lined square?

    • 0.02mm³

    • 0.002mm³

    • 0.004mm³

    • 0.04mm³

    Correct Answer
    A. 0.004mm³
    Explanation
    The volume of one triple-lined square is 0.004mm³.

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  • 9. 

    What is the rule used when counting cells in a hemocytometer?

    • North East Rule

    • Counting Rule

    • South West Rule

    • North West Rule

    Correct Answer
    A. North West Rule
    Explanation
    The North West Rule is used when counting cells in a hemocytometer. This rule involves counting the cells that are present in the four corner squares of the hemocytometer grid. It is a commonly used method for cell counting in laboratory settings.

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  • 10. 

    Why are several squares on the hemocytometer counted rather than just one?

    • It is more representative.

    • It is more fair.

    • It makes the results more reliable.

    • It is more valid.

    Correct Answer
    A. It is more representative.
    Explanation
    Counting several squares on the hemocytometer is more representative because it allows for a larger sample size. By counting multiple squares, the results can better reflect the overall concentration of cells in the sample. This reduces the likelihood of obtaining skewed or inaccurate results that may occur if only one square is counted. Therefore, counting several squares provides a more comprehensive and reliable assessment of the cell concentration in the sample.

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  • Current Version
  • Jul 23, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 28, 2011
    Quiz Created by
    Nuzzzzie
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