2.2 Animal tissues, organs and organ systems

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Question 8
Medium43%

Body Mass Index (BMI) is a measure used to determine if a person's body mass falls within a healthy range for their height.

Table 1 shows information about two people, P and Q.

Table 1

PersonBody mass (kg)Height (m)BMI (kg/m2\text{kg/m}^2kg/m2)
P781.8522.8
Q951.68Y

A graph showing five BMI categories for adults. The vertical axis represents height in metres from 1.48 to 2.02, with major grid lines every 0.02 m. The horizontal axis represents body mass in kilograms from 40 to 150 kg, with major grid lines every 10 kg and minor grid lines every 2 kg. Five shaded bands, separated by boundary lines, are labeled from left to right: Underweight, Normal, Overweight, Obese, and Clinically obese. The boundaries correspond to constant BMI values: Underweight/Normal boundary is BMI = 18.5, Normal/Overweight boundary is BMI = 25, Overweight/Obese boundary is BMI = 30, and Obese/Clinically obese boundary is BMI = 40.

a.

What is the BMI category for person P?

[1]
b.

Calculate the value of Y in Table 1 using the following equation: BMI=body massheight2\text{BMI} = \frac{\text{body mass}}{\text{height}^2}BMI=height2body mass​ Give your answer to 3 significant figures.

[4]

2.2 Animal tissues, organs and organ systems Questions

  1. GCSE
  2. /Biology
  3. /2.2 Animal tissues, organs and organ systems