Download B5 5 a day - Science Revision

B5 – Plant development
5 a day revision
You are provided with several plant
shoots and a sample of auxin.
Describe an experiment that you could
carry out to show that auxin causes a
shoot to bend.
5 a day revision
B5 – DNA to protein
DNA is made up of four different bases, A
T, C and G. In a DNA sample, 23% of the
bases are T. Calculate the percentage of
bases that are G.
Show your working!!
5 a day revision
Explain how animals and plants different
in terms of their capacity to grow.
B5 - Development
B5 – gene switching and stem cells
5 a day revision
Describe how cloning can be used to
produce embryonic stem cells.
5 a day revision
Every nucleus in the
body cell of an
elephant contains 56
chromosomes. Read
the statements about
cell division and put a
tick in the correct box
for each statement.
B5 – cell division