Once the DNA’s nucleotides have been copied, the mRNA can leave the nucleus of the cell and makes its way to the cytoplasm, where protein synthesis takes place. Here, complicated molecules called ribosomes ‘read’ the sequence of bases on the mRNA molecule. Individual amino acids, which co...
The researchers, who also include Jakob's former postdoctoral student Michael Gray, screened thousands of molecules to find which of the molecules was stopping the bacteria from producing polyphosphate. This test turned up mesalamine. Spearheaded by professor Duxin Sun in the College of Pharmacy, the...
What chemical structure makes up the cell membrane? What is the semipermeable membrane in all cells? What type of membrane protein is involved in passing ions and polar molecules across membranes? What organelles are membrane sacs used to transport molecules? Which molecules prevent cell membra...
So how can we differentiate molecules from supermolecules or condensed phases? If molecules mustn’t easily fall apart into, and establish an equilibrium with, their separate but individually stable components, then what are we going to call weak acids or indeed water? If rotaxanes (where a cyc...
The atoms that make up the molecules of all matter have a nucleus of neutrons and protons. Orbiting around all of the nuclei areelectronsthat carry a negative charge. The shape of their orbits gives the atoms a directional orientation, and the orbital motion causes a very weak magnetic field...
Modularity means your program is built like the universe. The world is made of molecules, which are made of atoms, electrons, nucleons, quarks, and (if you believe in them) strings. Likewise, good programs erect large systems from smaller ones, which are built from even smaller building blo...
An insect's chemical defenses against predators work by modulating the transient receptor potential (TRP) channels in the predator. TRP channels activate sensations such as pain and taste. When the researchers sequenced the wolf spider's brain cells, they found the same molecules that are activated...
A protein is made up of monomers that are called What kind of molecules has the instructions for protein synthesis? How does translation form proteins? What protein copies the luciferase gene into messenger RNA? What is the protein (enzyme) called that directly makes more RNA?
What Makes Slime Stretchy? Slime is all about polymers! A polymer is made up of very large chains of molecules. The glue used in slime comprises long chains of polyvinyl acetate molecules (that’s why we recommend PVA glue). These chains slide past one another fairly easily, that keeps the...
Which of the following molecules directly blocks the binding site between actin and myosin? a) calcium ions b) troponin c) myosin ATPase d) tropomyosin Which of the following does not make up a thin filament? a. actin b. myosin c. troponin d. tropomyosin What protein primarily makes ...