Life processes at the cellular level include:

• photosynthesis
• respiration
• cell division (DNA replication and mitosis as part of the cell cycle). 

• movement of materials (including diffusion, osmosis, active transport)
• enzyme activity (specific names of enzymes are not required)
• factors affecting the process
• details of the processes only as they relate to the overall functioning of the cell (specific names of stages are not required)
• reasons for similarities and differences between cells such as cell size and shape, and type and number of organelles present. 

Cells include plant cells and animal cells.