EVERYDAY SCIENCE

Detailed explanation-1: -Glycolysis, which literally means “splitting sugars", is the first step of cellular respiration. The process of glycolysis involves ten enzymatic reactions to convert one molecule of glucose into two molecules of pyruvate.

Detailed explanation-2: -Glycolysis is the first step in cellular respiration that occurs in the cytoplasm within the mitochondria. Glycolysis is the process in which glucose six-carbon sugar molecule is broken down into 3C molecules to generate cellular energy.

Detailed explanation-3: -The first stage of cellular respiration is glycolysis. This process is shown in the top box in Figure 5.9. 3 showing a 6-carbon molecule being broken down into two 3-carbon pyruvate molecules. ATP is produced in this process which takes place in the cytosol of the cytoplasm.

Detailed explanation-4: -The first step in glycolysis is catalyzed by hexokinase, an enzyme with broad specificity that catalyzes the phosphorylation of six-carbon sugars. Hexokinase phosphorylates glucose using ATP as the source of the phosphate, producing glucose-6-phosphate, a more reactive form of glucose.

Detailed explanation-5: -Phase 1: The “Priming Step" The first phase of Glycolysis requires an input of energy in the form of ATP (adenosine triphosphate). alpha-D-Glucose is phosphorolated at the 6 carbon by ATP via the enzyme Hexokinase (Class: Transferase) to yield alpha-D-Glucose-6-phosphate (G-6-P).