Using A Haemocytometer
9 Questions
| Total Attempts: 2867
HUMAN BIOLOGY AS A quiz on how to use a haemocytometer
Questions and Answers
- 1.A haemocytometer is a special counting chamber designed for counting _____ ____.
- 2.What is the rule used when counting cells in a haemocytometer?
- A.
North East Rule
- B.
Counting Rule
- C.
South West Rule
- D.
North West Rule
- 3.What squares are used when couting red blood cells?
- A.
The corner squares
- B.
The middle top square and middle bottom square
- C.
The 3 squares on the left and the 3 squares on the right
- D.
The middle square
- 4.What is the dilution factor for red blood cells?
- A.
1:300
- B.
1:200
- C.
1:100
- D.
1:50
- 5.What is the volume of one triple-lined square?
- A.
0.02mm³
- B.
0.002mm³
- C.
0.004mm³
- D.
0.04mm³
- 6.What is the dilution factor for white blood cells?
- A.
1:100
- B.
1:50
- C.
1:20
- D.
1:10
- 7.Where are white blood cells counted?
- A.
The middle square
- B.
The 3 left squares and 3 right squares
- C.
The squares in the corners
- D.
The 3 top squares and 3 bottom squares
- 8.Why are several squares on the haemocytometer counted, rather than just one?
- A.
It is more representative
- B.
It is more fair
- C.
It makes the results more reliable
- D.
It is more valid
- 9.When counting white blood cells, what is the volume of each square?
- A.
0.02mm³
- B.
0.01mm³
- C.
0.2mm³
- D.
0.1mm³
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