Mature mammalian red blood cells do not contain a nucleus.
Which process is a mature red blood cell still capable of performing?
Changing shape to squeeze through narrow capillaries
Synthesizing new hemoglobin proteins
Dividing by mitosis to replace aged cells
Transcribing genes to produce enzymes
40 exam-style questions on OCR GCSE Biology 1.1 Cell structures, covering 1.1.1 Viewing cells with light microscopes, 1.1.2 Sub-cellular structures and functions, and 1.1.3 Electron microscopy and resolution. Each one has a worked solution and a mark scheme showing where the marks go.