(a(i))[1]
Identify the protein type shown by Q.
(a(ii))[2]
R and S are both transport proteins. Name R and S.
(a(iii))[1]
Identify cell structure T.
(b)[5]
Referring to Fig. 1.1, outline what happens in a guard cell when there is water stress.
Biology 9700 · AS & A Level · Homeostasis in plants
Homeostasis in plants — practice question
Fig. 1.1 depicts part of a guard cell.