Living plant cells from pear fruit can use aerobic respiration or fermentation to break down glucose. The cells are kept at a suitable temperature in a sealed container. After a time, no oxygen remains.
Which process can still break down glucose in these cells?
aerobic respiration only
fermentation only
neither fermentation nor aerobic respiration
both fermentation and aerobic respiration
113 exam-style questions on OCR GCSE Biology 1.3 Respiration, covering 1.3.1 Cellular respiration supplies ATP, 1.3.2 Aerobic and anaerobic respiration, 1.3.3 Sugars and carbohydrates, 1.3.4 Amino acids and proteins, and 1.3.5 Fatty acids and lipids. Each one has a worked solution and a mark scheme showing where the marks go.