- How did Buchner's discovery settle the debate over whether biology needed its own special laws?
Biochemistry
The chemical processes within and related to living organisms.
- Why was Kossel's focus on the chemical contents of the nucleus unusual for physiologists of his era?
- What function does the phytol tail serve in anchoring chlorophyll within a cell membrane?
- Why was it previously so difficult to chemically analyze rare or biological compounds before Pregl's methods?
- What structural connection did Windaus establish between sterols and the fat-soluble vitamins?
- How does Langmuir's surface science help explain how cell membranes stay selectively permeable?
- What did Karrer discover about the relationship between beta-carotene and vitamin A?
- Why did the Nazi government prevent Richard Kuhn from accepting his Nobel Prize in 1938?
- How was folic acid first extracted and identified from spinach leaves?
- How did this work merge the previously separate fields of genetics and biochemistry?
- Why do modern biochemistry textbooks depend on isotope tracing to map metabolic pathways?
- What does the one gene, one enzyme hypothesis actually claim about how cells work?
- Which diseases did Karl F. Meyer research over the course of his career?
- What made the George Williams Hooper Foundation a major center of infectious disease research under Meyer?
- How does partition chromatography use two immiscible solvents to separate chemically similar compounds?
- Why was separating amino acids from each other so difficult before Martin and Synge's method?
- What distinguishes a macromolecule held together by covalent bonds from a colloid held together by secondary forces?
- Why did the chemical establishment of the 1920s consider molecules with weights in the hundreds of thousands too unstable to exist?
- What organic compounds did Miller find in the reaction residue after running electrical sparks through the gas mixture?
- What did du Vigneaud actually accomplish in 1953 that counts as the first synthesis of a polypeptide hormone?
- How did du Vigneaud confirm that his synthetic oxytocin was structurally and functionally identical to the natural hormone?
- Why did proving a hormone could be built in a lab matter beyond oxytocin itself?
- How many amino acids make up bovine insulin, and why did establishing this exact sequence matter for biochemistry?
- Why did stopping the reaction after fractions of a second matter for identifying the cycle's intermediate compounds?
- What are sugar nucleotides, and why does the cell need them to build complex carbohydrates?
- How does UDP-glucose drive the assembly of glycogen and cellulose inside cells?
- How did Luis Leloir's discovery of sugar nucleotides open up the field of glycobiology?
- What kinds of diseases result when the sugar nucleotide pathways Leloir described malfunction?
- What did Moore and Stein work out about the structure of ribonuclease that Anfinsen's experiments alone did not show?
- Why was sequencing the complete amino acid chain of an IgG antibody such a major undertaking for Edelman?
- What made peptide synthesis in solution so slow before Merrifield's method?
- Which modern peptide drugs trace their manufacturing logic back to Merrifield's solid-phase method?
- What substance does a banana peel release under pressure that makes it so slippery?
- How do liquid-like condensates form inside cells, and what cellular processes do they regulate?