Credit level problem solving revision

Try to answer the questions on paper first then move on to the answers to

find out how you got on.

1254:114:1.2In ratios, always try to simplify the numbers by the smallest number, in this case divide by 1.21254/1.2 = 1045, 114/1.2 = 95, 1.2/1.2 = 1

1045 95 1

Whole numbers – ratios cannot be shown with numbers that have a decimal place.

1.2 cm3 urine per minute. For 24 hours this would be 1.2 x 60 = 72 cm3 per hour, 72 x 24 = 1728cm3 per 24hours.1728/100 cm3 = 17.28 x 1.75g = 30.24g urea per 100cm3 urine.

30.24 Don’t round up too soon – leave your answer to one or two decimal places if this is what they have used in the question.

The diameter is the length from one side of the circle to the other. This is 2mm.

2mm/ 5 cells = the length of the cell is 0.4mm

2mm/ 10 cells = the width of the cell is 0.2mm

0.4

0.2

Use the formula you are given:Energy content (kJ) = temp rise (30) x 0.2130x0.21 = 6.3kJ per gram

6.3

There are 3 diagnoses that are not pink.

Could be inflammation or infection

Only one answer not pink but high viscosity

Go to 3

Normal

High cloudiness

Slight cloudiness Inflammation

Take care to match with the answer provided.

You must mention both variables in your answer:As boron concentration increases, the length of young trout increases.

1 micromole = 15 mm 10 micromoles = 16.2mmUse formula – change/original x 100Change = 1.2mm. Original length = 15mm1.2/15 x 100 = 8%

8

You will be marked on your labels, units and plot points/neat line.