Biology 9700/41 Oct Nov 2021 | Cambridge AS Level Past Papers With Mark Scheme

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- Kidney nephron structure: efferent blood vessel, ADH response, podocyte cells, medulla location.
- Proximal convoluted tubule adaptations: microvilli presence, mitochondria abundance, transport proteins, selective reabsorption efficiency.
- ADH concentration trends: correlation with blood water potential changes, physiological implications of low ADH levels.
- Rubisco activase activity: temperature effects on cotton and false flax, enzyme efficiency, implications for crop yield.
- Ecological surveys: biodiversity measurement techniques, species extinction and introduction factors, conservation decision-making.
- Genetic engineering goals: heat tolerance in crops, gibberellin synthesis location, enzyme involvement in germination processes.

CIE AS & A Level Biology (9700) Nov 2021

Laura Bellini

Classification: Paper 4

Page count: 24

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Last update: 2 months ago

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Biology 9700/41 Oct Nov 2021 | Cambridge AS Level Past Papers With Mark Scheme

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