Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
A biochemical mechanism in plants by which chlorophyll absorbs light energy for photosynthesis. There are two such mechanisms (photosystems I and II) involving different chlorophyll–protein complexes.
- ‘In higher plant chloroplasts, many pigment-binding proteins are inserted into the thylakoid membrane and organized into multisubunit complexes called photosystems.’
- ‘These trapping kinetics are much slower than observed in photosystem I, the other photosystem of oxygenic photosynthesis.’
- ‘Thus state transitions appear to act as a mechanism to balance excitation of the two photosystems under changing light regimes.’
- ‘Both types of photosystems differ in size, pigment and protein composition, and charge.’
- ‘In photosystem II, a different chlorophyll-protein complex absorbs light at the wavelength of 680 nm.’
Are you looking for a word for a foolish person? We explore twelve interesting words to describe the dunderheads in your life.
Before you run for the hills, let’s run through a list of ‘run’ expressions that are running through our minds.
The definitions of ‘buddy’ and ‘bro’ in the OED have recently been revised. We explore their history and increase in popularity.