Question

When a litre of water is introduced in human blood:

• A. $BMR$ decreases
• B. $RBCs$ collapse and urine production increase
• C. $BMR$ increase
• D. $RBCs$ collapse and urine production decrease

Answer 1

The correct option is B $RBCs$ collapse and urine production increase

When too much water is introduced into the blood externally, it lyses the $RBCs$ and triggers the release of $ANF$ which counters the action of $ADH$ (which makes urine more concentrated to save water) and creates more diluted urine.

Basal Metabolic Rate (BMR) is the number of calories required to keep our body functioning at rest.