Written by experienced authors and practising teachers the Essentials student book matches the OCR specifications for AS Biology and Human Biology.(7 marks) (Total 13 marks) OCR 2801 June 2001 B (BF), No.5 4 Active transport and facilitated diffusion are two ways by which ... 7 5 The diagram shows a cell surface membrane. a (i) Name A to E. (5 marks) (ii) State the width of a cell surfaceanbsp;...
Title | : | Essential AS Biology for OCR |
Author | : | Glenn Toole, Susan Toole |
Publisher | : | Nelson Thornes - 2004 |
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