Biology 9700/21 May June 2016 | Cambridge AS Level Past Papers With Mark Scheme

1. Features of malaria, tuberculosis, and cholera pathogens, including organism type and transmission methods.
2. Macrophage cellular processes, protein synthesis stages, and organelle roles in antigen presentation and immune response.
3. Structural and functional analysis of mammalian trachea tissues, including epithelial types, smooth muscle relaxation benefits, and collagen versus elastin properties.
4. Transpiration processes, hydrogen bonding in xylem water movement, and environmental influences on transpiration rates in forest ecosystems.
5. Mitosis spindle fiber functions, red blood cell maturation from stem cells, and high-altitude acclimatization effects on hemoglobin and hematocrit levels.
6. Fluid mosaic model of cell membrane structure, membrane thickness, and non-visible features in eukaryotic cell membranes.