Activitie 5 **Activity 5: Reabsorption of Glucose via Carrier Proteins**1. What happens to the concentration of glucose in the urinary bladder as the number of glucose carriers increases? - [Your response here]2. What types of transport are utilized during glucose reabsorption and where do they occur? - [Your response here]3. Why does the glucose concentration in the urinary bladder become zero in these experiments? - [Your response here]4. A person with type 1 diabetes cannot make insulin in the pancreas, and a person with untreated type 2 diabetes does not respond to the insulin that is made in the pancreas. In either case, why would you expect to find glucose in the person's urine? - [Your response here]*Note: This section provides questions related to the physiological process of glucose reabsorption in the kidneys, highlighting mechanisms involving carrier proteins and their relevance to diabetes.*

Glucose carriers are the transport proteins which spans the length of the whole plasma membrane that helps in the transportation of glucose molecules. Glucose molecules are also filtered along with other substances during the ultrafiltration process of the urine formation in the nephrons of the kidneys. Note- kindly post remaining questions as fresh questions next time. I have answered first two question for you. 1. When the number of glucose carriers increases then they carry more amount of glucose from the filtrate to be absorbed during the process of selective reabsorption as a result less amount of glucose is passed in the urine. 2. Selective reabsorption of glucose mainly occurs in the proximal convoluted tubule which is the part of renal tubule in the nephrons of the kidneys. Glucose is mainly absorbed by the facilitates diffusion method mediated by two different transport proteins, SGLT1 and SGLT2. It is also absorbed by secondary active transport more specifically by cotransport along with sodium ions.