Edexcel A-Level Biology AS 2.5 Membrane Transport Mechanisms Topic Practice

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Pearson Edexcel IAL Biology

Unit 1: Molecules, Diet, Transport and Health

Topic 1 - Molecules, Transport and Health

Topic 2 - Membranes, Proteins, DNA and Gene Expression

2.1—Gas exchange surfaces and Fick's Law

2.2—Cell membrane structure and models

2.3—Core Practical 3 - membrane permeability

2.4—Osmosis and water potential gradients

2.5—Membrane transport mechanisms

2.6—Amino acids, proteins and protein structure

2.7—Enzyme action and specificity

2.8—Core Practical 4 - enzyme-catalysed reaction rate

2.9—Nucleotides, DNA, RNA and base pairing

2.10—DNA replication and Meselson-Stahl evidence

2.11—Genetic code

2.12—Gene as a DNA base sequence

2.13—Protein synthesis

2.14—DNA replication errors and mutations

2.15—Inheritance terminology and monohybrid inheritance

2.16—Cystic fibrosis gene mutation effects

2.17—Genetic screening uses and implications

2.18—Ethical and social issues in genetic screening

2.R1—Recommended Additional Practical - tissue water potentials

2.R2—Recommended Additional Practical - protein concentration

Unit 2: Cells, Development, Biodiversity and Conservation

Topic 3 - Cell Structure, Reproduction and Development

Topic 4 - Plant Structure and Function, Biodiversity and Conservation

Unit 3: Practical Skills in Biology I

Practical Skills in Biology I

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