Organ System › Urinary system › Question #9955
Single Choice Easy

Q Which of the following is reabsorbed through active transport?

ID: #9955 Urinary system 118 views
Question Info
#9955Q ID
EasyDifficulty
Urinary systemTopic
Start Quiz on This Topic
 Your Answer

Choose the Best Option

Click any option to instantly check if you're correct.

  • A Albumin in the urine ✔ ✖
  • B Creatinine in the urine ✔ ✖
  • C Re-absorption of water at the proximal tubule ✔ ✖
  • D Re-absorption of amino acids ✔ ✖
Correct Answer

Explanation

Amino acids are small molecules, and they are freely filtered in the glomerulus, but more than 99% of them are reabsorbed in the proximal tubule by a sodium-dependent transport system. This process is an example of active transport since it requires energy in the form of ATP to move molecules against the concentration gradient. The reabsorption of amino acids is essential for the body because they are the building blocks of proteins, and their loss in urine can lead to protein malnutrition.

 Continue Practice
Previous Question Next Question
 Share

Share This Question

Challenge a friend or share with your study group.

 More from This Topic

Related MCQ Questions

How does ADH affect urine output? What is the average volume of urine produced in 24 hours? What percentage of the cardiac output passes through the kidneys? Which of the following substances cannot pass through the semipermeable walls of the glomerulus? In the process of renal tubular reabsorption, which ion is exchanged for sodium? In which part of the nephron are microvilli found in abundance? Among the given options, which substance is not typically secreted by the kidneys? From where does tubular reabsorption occur in the nephron tubules? Which substance does not use a renal threshold mechanism? Which of the following best describes the function of the renal system?