Arrhythmia Definition. A heart arrhythmia is an irregular heart beat: the beat may be too fast, too slow, or the rhythm may be irregular. Types. Arrhythmias can be classified by their origin (atria or ventricles) and by heart rate. Tachycardia. A fast (over 100 beats per minute) heart rate is called tachycardia.
What are products of the light and dark reactions of photosynthesis? The products of the light reaction are 602, 12 NADPH2 and 18 ATP.    The products of the dark reaction are C6H12O6, 12 NADP, 18 ADP, 18 Phosphates and 6H2O.
Photosynthesis consists of light-dependent and light-independent reactions... as we all know, the reactants of photosynthesis are carbon-dioxide, water and light, and the products are carbohydrates and oxygen... But which reactants and which products are the components of which of the 2 reactions.... The LIGHT-DEPENDENT reaction needs LIGHT in order to split WATER, to give OXYGEN as a byproduct, and the ENERGY (in the form of ATP and NADPH) necessary for LIGHT-INDEPENDENT reaction to take action.