The superior vena cava is a large, yet short vein that carries deoxygenated blood from the upper half of the body to the heart's right atrium. The inferior vena cava (or IVC) â¦ is the large vein that carries de-oxygenated blood from the lower half of the body into the right atrium of the heart.nferior vena cava is a vein carrying and returning the blood to the heart, and abdominal aorta is an artery taking oxygenated blood from the heart to the various organs and t â¦ issues. 10 people found this useful.
Biochemical differentiation between Staphylococci and Streptococci with CATALASE test: The main criterion for differentiation between Staphylococcus and Streptococcus genera is the catalase test. Staphylococci are catalase positive whereas Streptococci are Catalase negative. Catalase is an enzyme used by bacteria to induce the reaction of reduction of hydrogen peroxide into water and oxygen. III-A.
One molecule of catalase converts 40 million molecules of hydrogen peroxide to harmless water and oxygen every second: 2H2O2 catalase = 2H2O+O2 (an enzyme) Reaction occurs million of times every second! This is the same reaction that you witness when you pour hydrogen peroxide on a wound.The catalase released from injured cells rapidly breaks down the hydrogen peroxide. The bubbles that you see are oxygen gas released as a product of the reaction.These twin phenomena of high specificity and rapid reaction rates are the cornerstones of enzyme activity.Surely you tested some aerobic bacterium.Good day.his is the same reaction that you witness when you pour hydrogen peroxide on a wound. The catalase released from injured cells rapidly breaks down the hydrogen peroxide. The bubbles that you see are oxygen gas released as a product of the reaction.