A sports scientist examined a skeletal muscle biopsy under a light microscope to study capillary supply.

The diameter of the circular field of view is $mm0.60\text{ mm}$ .

The scientist counted the number of capillaries visible in three different fields of view at the same magnification:

Field 1: $24$ capillaries
Field 2: $21$ capillaries
Field 3: $27$ capillaries

Calculate the area of the field of view. Use the equation: $area=πr2\text{area} = \pi r^2$ , where $π=3.14\pi = 3.14$ and $r$ is the radius of the field of view.

Calculate the mean number of capillaries in one field of view.

Capillary density is the number of capillaries per $mm2\text{mm}^2$ . Use your results from parts (i) and (ii) to calculate the mean capillary density. Give your answer to 3 significant figures.

A sports scientist examined a skeletal muscle biopsy under a light microscope to study capillary supply.

The diameter of the circular field of view is $mm0.60\text{ mm}$ .

The scientist counted the number of capillaries visible in three different fields of view at the same magnification:

Field 1: $24$ capillaries
Field 2: $21$ capillaries
Field 3: $27$ capillaries

Calculate the area of the field of view. Use the equation: $area=πr2\text{area} = \pi r^2$ , where $π=3.14\pi = 3.14$ and $r$ is the radius of the field of view.

Calculate the mean number of capillaries in one field of view.

Capillary density is the number of capillaries per $mm2\text{mm}^2$ . Use your results from parts (i) and (ii) to calculate the mean capillary density. Give your answer to 3 significant figures.

2.1 Supplying the cell

Question 8

Markscheme

2.1 Supplying the cell

Question 8

Markscheme

2.1 Supplying the cell

Question 8

2.1 Supplying the cell Questions

2.1 Supplying the cell

Question 8

2.1 Supplying the cell Questions