Unit 5 Exam Qs and Worksheet

BTEC Applied Science Unit 5
Medium-Length Mock Exam: Biology & Chemistry


BIOLOGY MOCK EXAM
Section A - Heart & Circulation (10 marks)

1. Label the heart diagram (5 marks): Left atrium, Right atrium, Left ventricle, Right ventricle,
Septum.

2. Describe the role of the SAN and AVN in controlling heart rate. (3 marks)

3. Explain why the left ventricle wall is thicker than the right ventricle wall. (2 marks)

Section B - Cardiac Cycle & ECG (7 marks)

4. Explain what happens during atrial systole, ventricular systole, and diastole. (6 marks)

5. A person's stroke volume is 70 cm3 and heart rate is 75 bpm. Calculate cardiac output. Show
working. (1 mark)

Section C - Blood & Blood Vessels (8 marks)

6. Compare the structure of arteries, veins, and capillaries. (6 marks)

7. A patient is blood group B-. State which blood groups they can safely receive and explain why. (2
marks)

Section D - Cell Transport (5 marks)

8. Describe the difference between diffusion, facilitated diffusion, and active transport. Give one
example of each. (5 marks)