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Pearson Edexcel Advanced Level GCE In Biology B (9BI0) Paper 1 Advanced Biochemistry, Microbiology and Genetic ,Paper 2: Advanced Physiology, Evolution and Ecology , Paper 03: General and Practical Principles in Biology QP & MS June 2024

Pearson Edexcel Advanced Subsidiary GCE In Biology B (8BI0) Paper 01 and 2 Core Cellular Biology ,Microbiology and Core Physiology and Ecology QP & MS June 2024

Answer ALL questions. Some questions must be answered with a cross in a box . If you change your mind about an answer, put a line through the box and then mark your new answer with a cross . 1 A problem that has developed in recent years is the emergence of bacteria that are resistant to some antibiotics. (a) (i) Which of the following will lead to fewer resistant bacteria? A antibiotics being given to farm animals to prevent disease B doctors only prescribing antibiotics that are effecti...

Answer ALL questions. Some questions must be answered with a cross in a box . If you change your mind about an answer, put a line through the box and then mark your new answer with a cross . 1 (a) Plants take up magnesium ions and nitrate ions from the soil. These inorganic ions are dissolved in the water in the soil. (i) Magnesium ions and nitrate ions are incorporated into molecules made by the plant. Which row in the table shows the molecules that incorporate these ions? (1) A B C ...

Answer ALL questions. 1 A student made a root tip squash to observe the stages of mitosis. (a) Name the region of the root tip where cells are actively dividing. (1) . .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .. ... .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... ....

Answer ALL questions. Some questions must be answered with a cross in a box . If you change your mind about an answer, put a line through the box and then mark your new answer with a cross . 1 The photograph shows part of a root tip cell, as seen with an electron microscope. P Q X Y S R (Source: © BIOPHOTO ASSOCIATES / SCIENCE PHOTO LIBRARY) (a) (i) Which of the following structures is surrounded by a tonoplast? A P B Q C R D S (ii) In which of the following structures does the p...

Answer ALL questions. Write your answers in the spaces provided. 1 One of the first plant species to colonise some habitats is thale cress (Arabidopsis thaliana). The plant hormone IAA (auxin) is produced in the growing tips of plants such as thale cress. (Source: Nigel Cattlin / Alamy Stock Photo) (a) State what is meant by the term colonisation of a habitat. (1) . .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .....

Answer ALL questions. Some questions must be answered with a cross in a box . If you change your mind about an answer, put a line through the box and then mark your new answer with a cross . 1 Blood is pumped around the body in blood vessels to supply cells with nutrients and oxygen. (a) Which box in each row of the table shows where endothelial cells and valves are found? (2) Features of blood vessels Type of blood vessel both capillaries and veins capillaries only veins only neit...

Pearson Edexcel AS Level GCE In Biology A Salters Nuffield (8BN0) Paper 01: Lifestyle, Transport, Genes and Health QP & MS June 2024

Pearson Edexcel Advanced Level In Biology A Salters Nuffield (9BN0) Paper 02: Energy,Exercise and Coordination QP &MS June 2024