The diagram shown is a schematic of a haemcytometer as it would appear looking down your microscope. Answer the following question based on the cell counting method described in your prac notes

Cell within the red square will be counted

Question

The diagram shown is a schematic of a haemcytometer as it would appear looking down your microscope. Answer the following question based on the cell counting method described in your prac notes

Cell within the red square will be counted

BlackTom AI · Accepted Answer

The question asks us to judge whether the cell located in the red square would be counted when using the haemocytometer counting rules.
First, recall the standard counting rule for haemocytometer grids: you count cells that lie within the counting area, but you must apply boundary rules to avoid double-counting. Typically, cells that touch the top or left border of a square are not counted, while cells touching the bottom or right border are included.
Option analysis:
- True: This would claim that the cell in the red square is counted. If the cell in the red square touches the border that is designated as a non-counting boundary (top or left), it should not be counted under the usual rule. If it instead only touches the bottom or right border, it should be counted. Without precise border contact information, assuming the diagram shows the cell touching a boundary that is excluded, True would be incorrect.
- False: This asserts that the cell would not be counted. Given the standard convention (count cells that do not touch the top/left borders but may touch the bottom/right), a cell that lies on a border designated as non-counting would indeed be excluded, making False the correct choice. If the red-square cell is on an excluded boundary, it will not be counted, aligning with the practice.
Next, consider the visual cue: the red square highlights a cell positioned toward the perimeter and appearing to touch the boundary on the right side of the square. Since the border on the right is typically an included boundary (bottom/right) and the top/left boundaries are excluded, the exact contact shown matters. The provided answer key marks False, which matches the scenario where the cell contact falls on a non-counting boundary.
In summary, the counting rule emphasizes boundary handling to prevent double-counting. Given the standard convention and the diagram's highlighting, the cell in the red square would not be counted, leading to the False conclusion.

IMMU2011 2025 Fundamental immunology laboratory techniques-Pre prac quiz (Thursday)

The diagram shown is a schematic of a haemcytometer as it would appear looking down your microscope. Answer the following question based on the cell counting method described in your prac notes Cell within the red square will be counted

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