If Henle's loop were absent from mammalian nephron, which one of the following is to be expected?

(a)

There will be no urine formation

(b)

There will be hardly any change in the quality and quantity of urine formed

(c)

The urine will be more concentrated

(d)

The urine will be more dilute

Glomerular filtrate contains ______.

(a)

Blood without blood cells and proteins

(b)

Plasma without sugar

(c)

Blood with proteins but without cells

(d)

Blood without urea

Animal requiring minimum amount of water to produce urine are ______.

(a)

ureotelic

(b)

ammonotelic

(c)

uricotelic

(d)

chemotelic

The hormone which helps in the reabsorption of water in kidney tubules is _____.

(a)

cholecystokinin

(b)

angiotensin II

(c)

antidiuretic hormone

(d)

Pancreozymin

___________part of nephron has evolved to form hypertonic urine.

(a)

Glomerulus

(b)

Loop of Henle

(c)

Proximal convoluted tubule

(d)

Collecting duct

The glomerular hydrostatic pressure is estimated to be______________

(a)

60 mm/ Hg

(b)

55 mm / Hg

(c)

110 mm / Hg

(d)

75 mm / Hg

The major function of Henle's loop is to concentrate_____________

(a)

Na⁺ and Cl^-

(b)

K⁺ ions

(c)

Na⁺ and K⁺ ions

(d)

Na^- and CI⁺ ions

Normal urea level in human blood is about_______________

(a)

20-23 gms / 100 mL

(b)

17-30 mg / 100 mL

(c)

17 - 25 gms / 100 mL

(d)

15- 25 mg / 100 mL

______________is not a excretory organ.

(a)

Kidney

(b)

Lungs

(c)

Heart

(d)

Liver

Which part of nephron has evolved to form hypertonic urine?

(a)

Glomerulus

(b)

Loop of Henle

(c)

Proximal convoluted tubule

(d)

Collecting duct