Organic Chemistry/Carboxylic acids. < Organic Chemistry. A carboxylic acid is characterized by the presence of the carboxyl group -COOH. The chemical reactivity of carboxylic acids is dominated by the very positive carbon, and the resonance stabilization that is possible should the group lose a proton.
The presence of renal tubule cells in the urine is of diagnostic significance, as it points towards an underlying kidney disease. The last type of epithelial cells are squamous cells. These cells are the largest cells seen in urine specimens. These cells are flat, usually with an angular or irregular outline.
Simple squamous tissues are epithelial tissues with only one â¦ cell layer while stratified squamous tissues are epithelial tissues with more than one layer.    There is another special type of epithelial tissue called transitional squamous cells.They are found lining the urinary bladder and they can transition between having multiple layers (when the bladder is empty) to having a single layer (when the bladder is full). 2 people found this useful.Tim Mullican.imple squamous tissues are epithelial tissues with only one â¦ cell layer while stratified squamous tissues are epithelial tissues with more than one layer.