TASK 3 Writing activity.
Writers Role:
Year 12 Biology student.
Audience:
Another Year 12 Biology student
Written Format:
an informal piece
Writer’s Topic:
Details of Signal Transduction (see Key Knowledge below)
Writer’s Purpose:
To consolidate and demonstrate a high level of understanding
Today you will have 5 minutes planning time (can do this on this page) and 15 minutes of sustained
writing.
Why? “It's difficult to write something of substance without knowing the subject well; conversely, it is
hard to write about something well without learning it even better” – Angela Peery
Key knowledge:
• the stimulus-response model when applied to the cell in terms of signal transduction as a threestep process involving reception, transduction and cellular response
• difference in signal transduction for hydrophilic and hydrophobic signals in terms of the position
of receptors (on the membrane and in the cytosol) and initiation of transduction (details of
specific chemicals, names of second messengers, G protein pathways, reaction mechanisms or
cascade reactions are not required)