AS & A Level Biology (9700) — October–November 2024, Paper 42
10 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Fig. 1.1 is a diagram of part of a Bowman's capsule and a glomerular capillary. Label A points to a cell of the Bowman's capsule wall with finger-like processes; label B points to…
Answer this question and get it marked →Several different processes can affect allele frequencies in populations. Outline the processes that may affect allele frequencies in wildlife populations.
Answer this question and get it marked →The treatment of many diseases has been improved by the use of genetic technology in medicine. Explain what is meant by genetic engineering.
Answer this question and get it marked →Genetic crosses can be used to investigate patterns of inheritance. A mutation in a gene involved in fruit colour in tomato plants, Solanum lycopersicum, results in the production…
Answer this question and get it marked →Phenotypic variation exists in natural populations. There are many causes of variation. Natural selection determines which phenotypes are advantageous. Variation in a particular…
Answer this question and get it marked →DCPIP is an indicator and can be used to determine the rate of respiration of organisms such as yeast. State the category of indicators to which DCPIP belongs.
Answer this question and get it marked →Paper chromatography is a technique that can be used to separate and identify different chloroplast pigments. Describe how the results of paper chromatography can be used to…
Answer this question and get it marked →Fig. 8.1 is a diagram of a motor neurone. On Fig. 8.1, label X points to a cell located along the axon, and label Y points to a part within the cell body. Label Z points to a…
Answer this question and get it marked →The red ruffed lemur, Varecia rubra, is a mammal found only in the rainforests of the Masoala region in north east Madagascar. Fig. 9.1 shows a red ruffed lemur. The International…
Answer this question and get it marked →Blood glucose concentration is maintained around a set point by homeostasis. Explain the principles of homeostasis.
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