Biology ATP

[abcde]

Generally, knowledge of which topics is required in biology ATP papers? any tips?

 

[UxaiR]

1. Food Tests (very important)
2. Magnification
3. labeling of all the diagrams and identifying it clearly
4. little Knowledge of all the Chapters

 

[Silent Hunter]

cell structures, structures of other main things + things mentioned by uxair

 

[abcde]

Can someone please make me understand part (b) of last question of this paper:
http://www.xtremepapers.net/CIE/Cambrid ... 9_qp_6.pdf

Its urgent so plz reply as quickly as possible!