ATP and NADPH produced by the light reactions are used in the Calvin cycle to reduce carbon dioxide to sugar. The Calvin cycle is similar to the Krebs cycle in that the starting material is regenerated by the end of the cycle.
The above-given statement is absolutely true. Poorly tuned engines of vehicles will not get good gas mileage.
A poorly running engine may lose power that is needed for normal driving and emergencies, may not start, gets poor fuel economy, pollutes the air, and could stall when you are on the road causing a traffic problem.
Glucose stored in the form of glycogen in human bodies in the liver and muscles. Excess glycogen is stored as fat cells as liver can store a limited amount of glucose as glycogen.