(a)[6]
Complete Table 5.1 by entering the missing information.
(b(i))[1]
Name the ion that enters the cells at the base of the sensory hairs to produce receptor potentials.
(b(ii))[1]
If two or more of these hairs are stimulated within a period of 20-35 seconds, action potentials are generated, causing the leaf to close quickly and trap the insect. Suggest why it is helpful to the plant for two or more hairs to have to be stimulated before the leaf closes.
(b(iii))[1]
The trapped insect is digested by enzymes released from the leaf cells. Name the process by which the enzymes are released.
(b(iv))[1]
Suggest the reason Venus fly trap plants need to capture insects.