IB Biology HL C1.1.13 Hl Cyclical and Linear Pathways in Metabolism Questions
Practise IB Biology HL 1.1.13 by applying cyclical and linear pathways in metabolism concepts to exam questions.
- Syllabus
- First assessment 2025
- Course
- Biology HL
- Level
- HL
Exam points
- Distinguish linear pathways that run from substrate to product from cyclical pathways that regenerate an acceptor or initial molecule.
- Classify pathway descriptions such as glycolysis, Krebs cycle and Calvin cycle by whether intermediates are recycled or lead to an end product.
IB Biology HL C1.1.13 Hl Cyclical and Linear Pathways in Metabolism Questions question 1
Laccase is an enzyme that has the ability to decompose synthetic dyes used in the production of clothing and thus could potentially help reduce synthetic dye pollution.
An experiment was performed in which laccase was immobilized in alginate beads to determine the effectiveness of laccase immobilization in decolorizing the dye crystal violet. The graph shows the effect of laccase concentration on relative decolorization activity of the immobilized laccase. Error bars represent ± SD.
Distinguish between processes involved in cyclical and linear metabolic pathways.
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