Excretory Products and their Elimination

Home > Zoology > Excretory Products and their Elimination

Q1.

Assertion(A):	Urea can be used to maintain osmolarity of body fluids.
Reason(R):	Urea is more toxic and energetically less expensive than ammonia.

Both(A)and(R)are True and(R)is the correct explanation of(A).
Both(A)and(R)are True but(R)is not the correct explanation of(A).
(A)is True but(R)is False.
(A)is False and(R)is True.

Q2. The main function of aldosterone in Renin-Angiotensin mechanism is:

It converts angiotensinogen in blood to angiotensin I.
It is a powerful vasodilator.
It causes reabsorption of Na⁺ and water from the distal parts of the tubule.
It activate the JG cells to release rennin.