Biology 9700/11 May June 2024 | Cambridge AS Level Past Papers With Mark Scheme

1. Measurements of cell structures using eyepiece graticules and calculations of actual lengths, with applications in microscopy.

2. Prokaryotic cell characteristics, including size range and structural components like capsids and ribosomes.

3. Analysis of collagen’s molecular and fibrous structures, emphasizing primary and quaternary levels of protein structure.

4. Investigation of cotransport mechanisms in nicotine and sucrose transport, highlighting facilitated diffusion and proton gradients.

5. Comparative oxygen affinity in human and cat hemoglobin, supported by dissociation curves and Bohr effect implications.

6. Applications of antibiotics, such as penicillin, in bacterial cell wall synthesis inhibition, linked to multidrug-resistant bacterial infections.