9700/23/M/J/21 · Biology May/June 2021 Paper 23
6 questions, 60 marks. Each one links to its official mark scheme.
- Question 1 · 11 marks · Organelles, Phospholipids, Diffusion, osmosis and active transport, Fluid mosaic model
- Question 2 · 11 marks · Viruses, Antibiotics, Vaccination, Types of immunity
- Question 3 · 12 marks · Transcription and translation, Amino acids and protein structure, How enzymes work, Inhibitors
- Question 4 · 7 marks · Monomers, polymers and glucose, Xylem and phloem cells, Translocation
- Question 5 · 11 marks · Blood cells, Cardiac cycle, Gas exchange in the alveoli
- Question 6 · 8 marks · Magnification calculations, Chromosomes and telomeres, Stages of mitosis
Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.