Kangas joined Nightly Business Report in 1979; in 2003, his Stocks in the News segment earned a Financial Writers and Editors Award from the Medill School of Journalism at Northwestern University. In 2005, he won a Suncoast Chapter Silver Circle Award.
What Is a Malpighian Tubule? Malpighian tubules are organs within insects that excrete solid waste. Larvae of certain species of beetles use Malpighian tubules to produce silk.
Functions of the Distal Convoluted Tubule. The distal convoluted tubule. 1  reabsorbs Na+ ions through coupled secretion of H+ or K+ ions into the tubular fluid, a process which requires the presence of the adrenal hormone aldosterone.2  By acidifying the urine the distal convoluted tubule plays an important role in acid-base balance.unctions of the Distal Convoluted Tubule. The distal convoluted tubule. 1  reabsorbs Na+ ions through coupled secretion of H+ or K+ ions into the tubular fluid, a process which requires the presence of the adrenal hormone aldosterone.