Respuesta :
Answer:
Because of the great deal of active transport that occurs here, the proximal convulated tubules of all the nephrons collectively account for about 6% of one's daily resting ATP and caloric consumption.
Explanation:
Proximal convulated tubule is responsible for transport of a very large number of substances mentioned below :
- Sodium bicarbonate
- Sodium Chloride
- Glucose
- Amino acid
- Organic solutes
- K ions are absorbed via paracellular pathway.
- Water is absorbed passively.
Transporters include :
- Na/K transporter
- Na/HCO3 transporter
- Na/glucose
- Na/Amina acids
As a large number or transporters are present in the PCT , large amouny of ATP is cleaved here, and about 6% of daily resting ATP and caloric consumption occurs.
The proximal convoluted tubule accounts for about 6 percent of one's daily resting ATP and consumption of calories.
What is the role of proximal convoluted tubule?
The majority of the substances are reabsorbed actively in the PCT or proximal convoluted tubule in the kidneys with the help of primary and secondary active transport. It is accountable for the transport of number of substances like:
- Sodium bicarbonate
- Amino acids
- Glucose
- Sodium chloride and etc
Large number of transporters are also present within the proximal convoluted tubule like
- Sodium-potassium transporter
- Sodium-bicarbonate transporter
- Sodium-amino acids transporter
Due to the presence of the large number of transporters in the PCT, the cleaving of the ATP in huge amounts also takes place here, which accounts for about 6 percent of the daily resting ATP and caloric consumption.
Thus, the given blank can be filled with PCT or proximal convoluted tubule.
Find out more information about the function of PCT here:
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