Bios 225 lab - Study guides, Class notes & Summaries

BIOS 225 Lab Report Week 4- Gram Staining Introduction: Gram staining is a method of staining used to differentiate bacterial species into two large groups, gram-positive and gram-negative. Gram staining differentiates bacterial species by the chemical and physical properties of their cell walls by detecting peptidoglycan, which is present in the cell wall of gram-positive bacteria. Gram-positive retain the crystal violet dye while gram-negative does not. Gram positive will appear purple and...

BIOS 225 Lab Report Week 3- Kidney Filtration Simulation Introduction: The main functions of the kidneys is to filter blood and remove wastes and extra water from the blood to form urine. The kidneys ensure that the blood retains essential components such as blood cells, proteins, and glucose. By means of both osmosis and active transport, the kidneys maintain a proper balance of water and salts in the blood. The actual filtering occurs in tiny units inside your kidneys called nephrons. Ever...