Biology 7401/1 June 2022

AQA AS Level Biology (7401) Jul 2022

معلم موافق رایگان بودن است.

The exam assesses foundational biology topics, including molecular biology, cellular structure, and physiology. Key themes are biomolecules, enzymatic processes, protein synthesis, and DNA/mRNA structural differences. Physiological concepts include oxygen uptake in lugworms, enzyme-substrate interactions, and iron ion transport regulation. Experimental methods are emphasized in questions on microscopy, antimicrobial effectiveness, and enzyme activity. Additional topics address tumor biology, mitotic index evaluation, immunity, fetal-maternal antibody transfer, and vaccine-induced herd immunity. Quantitative skills are integrated through calculations involving microbial growth, dissolved oxygen, and reaction rates, fostering data interpretation proficiency.