Fifth Edition Answers To End-Of-Chapter Questions: GCSE Biology For You
Fifth Edition Answers To End-Of-Chapter Questions: GCSE Biology For You
Fifth Edition Answers To End-Of-Chapter Questions: GCSE Biology For You
OUP GCSE Biology for You, Fifth Edition © Williams Services Ltd, 2016 page 1 of 2
8 a) Penicillin
b) It killed all the bacteria in the tube in 4 hours.
c) Chloramphenicol
d) The bacteria in the tube were not killed but actually increased in numbers.
e) Antibiotics can stop the growth of bacteria and so halt their spread.
9 a) 1954
b) i) 40 000
ii) 5000
c) 12.5%
page 2 of 2 OUP GCSE Biology for You, Fifth Edition © Williams Services Ltd, 2016