Question

In a person the tubule part of the nephron is not functioning at all. What will its effect be on urine formation?
A. The urine will not be formed.
B. Quality and quantity of urine is unaffected.
C. Urine is more concentrated.
D. Urine is more diluted.

Answer 1

Answer:

option d

Explanation:

as tubule is not functioning properly selective reabsorption will not occur so it will be more diluted

Answer 2

If this part of the nephron is not working the water will not be reabsorbed and hence the urine formed will be dilute (d) Urine is more diluted.

Explanation:

• The major function of tubules is reabsorption and the process can either be through active transport or passive transport.
• In addition secretions by tubules help in the urine formation without affecting the electrolyte balance of the body.
• The nephrons of the kidneys process blood and create urine through a process of filtration, reabsorption, and secretion. Urine is about 95 percentage of water and 5 percentage waste products.
• Nitrogenous wastes excreted in urine include urea, creatinine, ammonia, and uric acid.
• The tubule returns needed substances to your blood and removes wastes. A blood vessel runs alongside the tubule.The tubule helps remove excess acid from the blood.
• During filtration the substance like glucose,amino acid,salt,water etc gets passed into the bowman's capsule which then enter the tubule.
• This filtration contains some useful substances like glucose and amino acids.
• The dirty blood containing urea is glomerulus filters.