Biology 9700/12 March 2018 | Cambridge AS Level Past Papers With Mark Scheme

1. Eyepiece graticule functions for measuring cell lengths and maintaining drawing proportions in microscopy.

2. Effects of objective lens changes on field of view, impacting visible cell quantities under light microscopy.

3. Functions of organelles such as microtubules, Golgi bodies, and rough endoplasmic reticulum in intracellular transport and protein synthesis.

4. Serial dilutions for glucose concentration and polysaccharide properties, including β-glucose rotation and amylopectin branching.

5. Peptide bond formation between amino acids, impacting primary protein structure and its relationship with DNA sequences.

6. Differences between enzyme-mediated hydrolysis products, globular protein roles, and lysosomal enzyme functions in intracellular and extracellular environments.