1
MCQ (Single Correct Answer)
The following substances are the excretory products in animals. Choose the least toxic form among them.
A
Urea
B
Uric acid
C
Ammonia
D
Carbon dioxide
2
MCQ (Single Correct Answer)
Filtration of the blood takes place at
A
PCT
B
DCT
C
Collecting ducts
D
Malpighian body
3
MCQ (Single Correct Answer)
Which of the following statement is incorrect?
A
ADH prevents conversion of angiotensinogen in blood to angiotensin
B
Aldosterone facilitates water reabsorption
C
ANF enhances sodium reabsorption
D
Renin causes vasodilation
4
MCQ (Single Correct Answer)
A large quantity of one of the following is removed from our body by lungs.
A
$\mathrm{CO}_2$ only
B
$\mathrm{H}_2 \mathrm{O}$ only
C
$\mathrm{CO}_2$ and $\mathrm{H}_2 \mathrm{O}$
D
ammonia
5
MCQ (Single Correct Answer)
The pH of human urine is approximately?
A
6.5
B
7
C
6
D
7.5