Many enzymes consist of a protein and a non-protein (called the cofactor). The proteins in enzymes are usually globular. The intra- and intermolecular bonds that hold proteins in their secondary and tertiary structures are disrupted by changes in temperature and pH. This affects shapes and so the catalytic activity of an enzyme is pH and temperature sensitive.
Everyday in the U.S. millions of cars and trucks idle needlessly, sometimes for hours. You may not be able to avoid keeping your engine running when youâre stopped at a traffic signal or stuck in slow-moving traffic. But other times idling is unnecessary. An idling car can release as much pollution as a moving car.
Â· just now. Report Abuse. An idle won't do you much good at all, the alternator must have higher RPM's to charge the battery. Driving the car for 20-30 minutes or so, if the alternator is putting out the right volts, will be sufficient to fully charge the battery. Good luck. Don,The Â· 8 years ago.