To perform well on this text, it helps to understand the two main scientific concepts the authors discuss:
Understanding these foundational principles helps navigate the text within strict time constraints:
The text explicitly mentions the year and the names of the chemists who first isolated the specific volatile organic compound (VOC), marking the historical origin of the research. a buzz in the world of chemistry reading answers with
This IELTS reading passage typically has about 13-15 questions, and it appears in two common variants that ask different sets of questions. We have broken down the answers for both versions for you.
A substance that kills or inhibits the growth of microbes. To perform well on this text, it helps
It sounds like you’re looking for a breakdown of the popular IELTS Reading passage which explores the fascinating history of synthetic dyes —specifically William Perkin’s accidental discovery of mauveine.
Now that you have the answers, let's look at how to approach a passage like this to improve your overall IELTS Reading score. A substance that kills or inhibits the growth of microbes
After the development of solid-phase peptide synthesis in the 1960s by Merrifield, synthetic peptide chemists were also doing permutation and combination sums. There are 20 naturally occurring amino acids, the building blocks of peptides and proteins, the workhouse molecules of life. How many ways can these be arranged, or chemically bonded, to synthesize novel peptides which might be put to any number of uses in the pharmacy? If we take just one molecule of each of the 20 amino acids and join them together to form a peptide, we find that we can arrange these in 20! (2.432902008177×10¹⁸) ways. Nature knows no such restraint; it can use multiple copies of each amino acid, and so can synthesize 20²⁰ (1.048576×10²⁶) twenty-amino-acid peptides. Proteins contain hundreds of amino acids.
The text states that flowers guide insects to their center using reflections of ultraviolet light .
(The researchers won an international award for their discovery.)