Get premium membership and access revision papers with marking schemes, video lessons and live classes.
A student set up an experiment as shown in the diagram below.
(a) (i) What is being investigated in the experiment?
(ii) On the diagram below indicate the expected results after three days.
(iii) Why was it necessary to have wet cotton wool in the container?
(b) What is the role of the following to a germinating seed
(i) Oxygen
(ii) Cotyledons