Mexican redbud (Cercis canadensis ssp. Mexicana) trees have a rounded and dense form that is broad and compact. The stems on Mexican redbuds are thicker than other redbud species, as well as more rigid. They grow 15 to 25 feet tall and have pink to purple spring-blooming flowers. The dark-green, leather-like leaves on Mexican redbud trees grow 2 to 6 inches long and have a glossy appearance as the tree ages.
enzymeâsubstrate complex. A Dictionary of Biology. Â© A Dictionary of Biology 2004, originally published by Oxford University Press 2004. enzymeâsubstrate complex The intermediate formed when a substrate molecule interacts with the active site of an enzyme. Following the formation of an enzymeâsubstrate complex, the substrate molecule undergoes a chemical reaction and is converted into a new product.
In biochemistry, a substrate is the molecule acted on by an enzyme to produce a product. p37. The general equation for an enzyme reaction is:An example: Sucrase, 400 times the size of its substrate sucrose, splits the sucrose into its constituent sugars, which are glucose and fructose. Enzymes increase the rate of reaction up to 10 billion-fold and are effective in tiny amounts. 2  One enzyme molecule may convert 1000 molecules of substrate a minute, and some are known to convert 3 million in a minute. 3  p39.