nuclease - general term for enzymes that catalyze the hydrolysis of nucleic acid by cleaving chains of nucleotides into smaller units. 1  endonuclease - a nuclease that cleaves nucleic acids at interior bonds and so produces fragments of various sizes. exonuclease - a nuclease that releases one nucleotide at a time (serially) beginning at one of a nucleic acid. enzyme - any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions.
1 gram of fat = 9 calories. Each gram of fat contains 9 calories. In general carbs are 4 cal per gram, as is protein and fat is 9 cal per gram. 16 people found this useful.
Calories per Gram:A carbohydrate gram is 4 calories,a protein gram is 4,and a fat gram is 9.There is no standard for combined grams. Zone Blocks:A carbohydrate block is 36 calories,a protein block is 28,and a fat block is 27.Combine one block of each nutrient to make a whole Zone block, which is 91 calories.