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.
â¢ Some bacteria ferments glucose to produce a number of organic acids such as lactic, acetic, succinicand formic acids.â¢ CO2, H2 and ethanol are also produced in this fermentationâ¢ A positive test, which turns red after Methyl red is added, indicates the organism carried out mixedâacid fermentation.xidase Test â¢ A swab of a bacteria from a TSA plate is taken by a sterile swab, alternatively a sample is also transferred from the plate to a piece of filter paper. Several drops of oxidase reagent are added to the cells on the paper.