Most chemical catalysts catalyse a wide range of reactions. They are not usually very selective. The proteins in enzymes are usually globular. For two molecules do enzymes form covalent bonds substrate react they must collide with one another. An enzyme-catalysed reaction takes a different ‘route’.
This is the simplest model to represent how an enzyme works. Each enzyme works within quite a small pH range. They block or distort the active site. Pectinase is used to produce and clarify fruit juices. Enzymes can be immobilized by fixing them to a solid surface. Use your mouse to move the cursor over the text and graphics in the section below. Have you found what you are looking for? Do you need more examples of enzymes, not just digestive ones? Or more details about these?
6 Ligases: join two molecules with covalent bonds. If you need more help, get in touch using the ‘Contact via form’ option at the foot of this page. From these measurements rate of reaction may be directly calculated. Return to the contents page? Howlers are laughable mistakes – 22 pages! You can rely on us!
Pearson, as an active contributor to the biology learning community, is pleased to provide free access to the Classic edition of The Biology Place to all educators and their students. The purpose of the activities is to help you review material you have already studied in class or have read in your text. Some of the material will extend your knowledge beyond your classwork or textbook reading. At the end of each activity, you can assess your progress through a Self-Quiz.
To begin, click on an activity title. Concept 1: How Do Restriction Enzymes Work? Concept 11: Allelic Frequency vs. Concept 3: How Do Guard Cells Function? Concept 5: The Genetic Code: RNA vs. The precocious development of sexual maturity in a larva. The retention in an adult organism of the juvenile features of its evolutionary ancestors. The scientific study of fossils.