Explain, why the process of glycolysis and cellular respiration releases the energy of glucose in small quantities rather than all at once.

Photorespiration is the process by which light is used to release the stored energy in carbohydrate molecules to perform all work in plant cells .

If it is calculated that less than 5% of the energy of glucose is recovered as ATP in glycolysis, the remaining energy is left in

The teachers of Geeta's school took the students on a study trip to a power generating station, located nearly 200km away from the city. The teacher explained that electrical energy is transmitted over such a long distance to their city. In the form of alternating current (ac) raised to a high voltage. At the receiving end in the city, the voltage is reduced to operate the devices. As a result, the power loss is reduced. Geeta listened to the teacher and asked questions about how the ac is converted to a higher or lower voltage. Explain with an example , how power loss is reduced if the energy is transmitted over long distances as an alternating current rather than a direct current .

How many PGAL are produced by glycolysis of three molecules of glucose ? How many ATP are released by respiration of these PGAL till formation of CO_(2)" and "H_(2)O

Energy released in aerobic respiration is higher than the one available from anaerobic respiration by

In has been estimated that the total energy radiated by the sun is 3.8xx10^26 J per second. The source of energy of stars is a thermonuclear reaction called nuclear fusion. Fusion reactions are not controlled. It is presumed that the energy of stars is due to two processes called proton-proton cycle and carbon nitrogen cycle. Fusion cannot take place at ordinary temperature. This, hydrogen bomb uses a small fission bomb, which on explosion causes the temperature to rise very high about 10^7 K. We have yet to see how a hydrogen bomb can be used for peaceful life-sustaining purpose. Energy released in the process of fusion is due to mass defect. It is also called Q-value. Q =Deltamc^2 , Deltam= mass defect Answer the following questions based on above passage: Fusion reaction takes place at about: