Contemporary Examples. â 1 competition is there, of course, but I think there is enough business for everyone as long as the demand is there,â he says. Ghost Ships of the Mediterranean Barbie Latza Nadeau January 5, 2015. 2  I am fighting that quota because I am an advocate of competition.
The correct answer is bâcatalyzing a series of reactions using multiple different enzymes B. Answer b is correct. The enzymes within a multienzyme complex all work on complementary reactions in which the product of one reaction supplies the substrate for the next. The correct answer is bâ C. Answer c is incorrect. Enzymes catalyze reactions by lowering the activation energy; however, this property is not unique to multienzyme complexes. The correct answer is bâ D. Answer d is incorrect. Multienzyme complexes contain more than a single enzyme and although they do lower the activation energy, that property is not unique to these complexes.
Enzymes play a large part in respiration as it helps to catalyse the reaction. Enzymes are affected greatly by pH. Enzymes are said to have an optimum pH. This means that when the pH is greater than the optimum, the enzyme will be denatured and no longer be able to catalyse the reaction. This is because enzymes are proteins, and they consist of long strings of amino acids, of which hydrogen plays a significant part. Acids are substances that contain #H^+# ions, while alkalis contain #OH^-# ions - so pH is essentially a measure of how many #H^+# ions are in a substance.