IB DP Biology Standard Level (2023 syllabus) · IB ib-bio-sl
C Interaction and interdependence
Written & reviewed by James Millett — Biology (Imperial College London), PGCE Science (University of Cambridge).
Practice questions on Interaction and interdependence
- Explain how B lymphocytes and T lymphocytes differ in their roles during the adaptive immu… (4 marks, Explain)
- Explain how the products of enzyme-catalysed reactions accumulate in metabolic pathways, a… (4 marks, Explain)
- Explain how substrate concentration affects the rate of an enzyme-catalysed reaction, incl… (4 marks, Explain)
- Explain how enzymes lower the activation energy of a reaction, and outline why this is imp… (4 marks, Explain)
- Explain how the Krebs cycle contributes to ATP production during aerobic cell respiration. (4 marks, Explain)
- Explain how biomass is lost at each trophic level in a food chain, and state one reason wh… (4 marks, Explain)
- Explain how the products of the light-dependent reactions are used in the Calvin cycle to … (4 marks, Explain)
- Explain how non-competitive inhibitors reduce the rate of an enzyme-catalysed reaction. (4 marks, Explain)
- Explain how phagocytes destroy pathogens that have entered body tissues. (4 marks, Explain)
- Explain how the respiratory system and the musculoskeletal system are integrated to allow … (4 marks, Explain)
- Explain how the endocrine system and the digestive system are integrated to regulate blood… (4 marks, Explain)
- Explain how the specificity of enzymes arises from their molecular structure, and state on… (4 marks, Explain)
- Explain how glycolysis converts glucose into pyruvate and contributes to ATP production. (4 marks, Explain)
- Explain how the endocrine system and the cardiovascular system are integrated to respond t… (4 marks, Explain)
- Explain how the link reaction connects glycolysis to the Krebs cycle during aerobic cell r… (4 marks, Explain)
- Explain how chemiosmosis results in the synthesis of ATP during aerobic cell respiration. (4 marks, Explain)
- Explain why anaerobic cell respiration produces far less ATP per glucose molecule than aer… (4 marks, Explain)
- Explain how the inflammatory response acts as a defence against infection at a site of tis… (4 marks, Explain)
- Explain how light energy is used to produce ATP and NADPH during the light-dependent react… (4 marks, Explain)
- Explain why photosynthesis in a C3 plant eventually stops when a plant is kept in complete… (4 marks, Explain)
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