Biology 9700/01 Oct Nov 2004 | Cambridge AS Level Past Papers With Mark Scheme

The document contains a multiple-choice examination testing fundamental concepts in biology, structured as 40 questions. Topics covered include:

1. Eukaryotic and prokaryotic cell structures: organelles with nucleic acids, electron microscopy applications, and ribosome subunits' composition.

2. Biological molecules and their roles: phospholipids in membranes, glycogen properties, bonds in macromolecules (ester, glycosidic, peptide), and water's cohesive properties.

3. Enzyme activity: effects of substrate concentration and inhibition (competitive vs. non-competitive).

4. Genetic processes: DNA transcription, mRNA coding for polypeptides, and tRNA anticodon specificity in mutations like sickle cell anemia.

5. Cellular processes: mitosis, chromosome distribution, active transport, and osmosis-related structural changes.

6. Circulatory and respiratory systems: red blood cell adaptations, immune response by B-lymphocytes, and diseases such as bronchitis and cholera.

7. Photosynthesis and energy dynamics: chloroplast functions, nitrate fertilizer effects on crop yield, and energy transfer in ecosystems.

8. Ecology: definitions of population, community, and niche, emphasizing interactions among species.