2.2 Animal tissues, organs and organ systems

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

Question 12

Medium

An individual's red blood cell (RBC) count and haemoglobin levels vary depending on their health and environment. The table below shows the average RBC count and haemoglobin concentration of a healthy adult and an adult suffering from iron-deficiency anaemia.

Group	Average RBC Count ( $cells/dm310^{12} \text{ cells/dm}^3$ )	Average Haemoglobin Concentration ( $g/dm3\text{g/dm}^3$ )
Healthy Adult	5.0	150
Adult with Anaemia	3.2	96

Calculate the percentage decrease in the average haemoglobin concentration of the adult with anaemia compared to the healthy adult.

[2]

Explain how a lower haemoglobin concentration causes the symptom of extreme tiredness.

[3]

2.2 Animal tissues, organs and organ systems

Question 12

2.2 Animal tissues, organs and organ systems Questions

2.2 Animal tissues, organs and organ systems

Question 12

2.2 Animal tissues, organs and organ systems Questions