Eighteen past-paper questions on xylem and phloem, water pathways, transpiration, xerophytes, translocation and the potometer, from easy to hard, each with its mark scheme and advice from the examiners' reports.

Twenty past-paper questions on circulatory systems, blood vessels, tissue fluid, the heart, ECGs and haemoglobin, each with its mark scheme and advice from the examiners' reports.

Seventeen past-paper questions on SA:V, alveoli, the airways, ventilation, spirometer traces and gas exchange in fish and insects, each with its mark scheme and advice from the examiners' reports.