Biology 9700/41 May June 2017 | Cambridge AS Level Past Papers With Mark Scheme

1. Homeostasis roles of the kidney and osmoregulatory functions of the hypothalamus and posterior pituitary.

2. Photosynthetic efficiency of coral-associated algae, light absorption of chloroplast pigments, and benefits of violet-blue light in coral growth.

3. Genetically modified oil seed rape for herbicide resistance, plasmid usage in genetic engineering, and environmental implications of pollen transfer.

4. ATP production and usage across respiration stages, and mitochondrial adaptations influencing exercise endurance.

5. Herbicide resistance in biotype X red poppies, enzyme mutation impact, and ecosystem effects from altered weed populations.

6. Sliding filament model in muscle contraction: roles of tropomyosin and myosin, and physiological advantages of fast and slow twitch muscle fibers.