9700/12/O/N/20 · Biology October/November 2020 Paper 12
38 questions, 38 marks. Each one links to its official mark scheme.
- Question 1 · 1 mark · Resolution and magnification
- Question 2 · 1 mark · Magnification calculations
- Question 3 · 1 mark · Organelles
- Question 4 · 1 mark · Organelles
- Question 5 · 1 mark · Prokaryotic cells
- Question 6 · 1 mark · Viruses
- Question 7 · 1 mark · Food tests
- Question 8 · 1 mark · Sugars and glycosidic bonds
- Question 9 · 1 mark · Amino acids and protein structure
- Question 10 · 1 mark · Amino acids and protein structure
- Question 11 · 1 mark · Globular and fibrous proteins
- Question 12 · 1 mark · How enzymes work
- Question 13 · 1 mark · Factors affecting rate
- Question 14 · 1 mark · Inhibitors
- Question 15 · 1 mark · Water potential
- Question 16 · 1 mark · Surface area to volume ratio
- Question 17 · 1 mark · The cell cycle
- Question 18 · 1 mark · Chromosomes and telomeres
- Question 19 · 1 mark · Chromosomes and telomeres
- Question 20 · 1 mark · DNA structure
- Question 21 · 1 mark · Genes and the genetic code
- Question 22 · 1 mark · Gene mutations
- Question 23 · 1 mark · Translocation
- Question 24 · 1 mark · Translocation
- Question 25 · 1 mark · Water potential
- Question 26 · 1 mark · Translocation
- Question 27 · 1 mark · Double circulation
- Question 28 · 1 mark · Cardiac cycle
- Question 29 · 1 mark · Double circulation
- Question 30 · 1 mark · Carbon dioxide transport
- Question 31 · 1 mark · Oxygen dissociation curve
- Question 32 · 1 mark · Structure of the gas exchange system
- Question 33 · 1 mark · Gas exchange in the alveoli
- Question 36 · 1 mark · Prevention and control
- Question 37 · 1 mark · Antibiotics
- Question 38 · 1 mark · Immune responses
- Question 39 · 1 mark · Types of immunity
- Question 40 · 1 mark · Immune responses
Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.