...................................................... .minutes (1) (c) Which of the following parts of the blood carries most oxygen? Draw a circle around one answer. plasma red blood cells white blood cells (1) (Total 5 marks) M1. advantages useful where no other treatment available / patients near to death • or extends lifespan • 1 disadvantages low success rate • 1 device has limited lifespan • or battery will need changing 1 discomfort from heart / battery / controller • 1 risk of infection • 1 [5] M2. (a) (i) artery 1 (ii) capillary 1 (b) alveoli 1
...................................................... .minutes (1) (c) Which of the following parts of the blood carries most oxygen? Draw a circle around one answer. plasma red blood cells white blood cells (1) (Total 5 marks) M1. advantages • useful where no other treatment available / patients near to death or • extends lifespan 1 disadvantages • low success rate 1 • device has limited lifespan or battery will need changing 1 • discomfort from heart / battery / controller 1 • risk of infection 1 [5] M2. (a) (i) artery 1 (ii) capillary 1 (b) alveoli 1
heart-revision-ppqs-and-answers.docx