Which of the following statement is correct with respect to to excretion?
1. Our lungs remove large amount of CO2 (180 litres/day) and also significant quantity of water everyday
2. The ascending limb is permeable to water and also allows transport of electrolytes actively or passively
3. Conditional reabsorption of Na+ and water takes place in proximal convoluted tubule
4. Maximum water reabsorption takes place in proximal convoluted tubule, even in the presence of ADH
Match the items in Column - I with those in Column - II:
Column I | Column II | ||
(a) | Podocytes | (i) | Crystallised oxalate |
(b) | Protonephridia | (ii) | Annelids |
(c) | Nephridia | (iii) | Amphioxus |
(d) | Renal calculi | (iv) | Filtration slits |
(a) | (b) | (c) | (d) | |
1. | (iii) | (iv) | (ii) | (i) |
2. | (iii) | (ii) | (iv) | (i) |
3. | (iv) | (iii) | (ii) | (i) |
4. | (iv) | (ii) | (iii) | (i) |
Urinary excretion is equivalent to:
GF = Glomerular filtration.
TR = Tubular reabsorption.
TS = Tubular secretion.
1. GF + TR + TS
2. GF – (TR + TS)
3. GF – TR + TS
4. GF – TS + TR
Which is not correctly matched?
1. Malpighian tubules - Cockroaches, Mosquito
2. Antennal glands - Planaria, Crab
3. Nephridia - Earthworm
4. Protonephridia - Amphioxus
Analysis of urine helps in clinical diagnosis of many metabolic disorder as well as malfunctioning of kidney. Given below are some disorders
a. Glycosuria b. Ketonuria
c. Haematuria d. Proteinuria
Choose the correct option which indicates disorders of diabetes mellitus if not controlled?
1. a only
2. a & b only
3. a,b & c only
4. a,b,c & d
Which of the following part of the nephron is not involved in tubular secretion?
1. Bowman’s capsule
2. PCT
3. DCT
4. Collecting Duct
In the accompanying diagram of a human nephron the functional parts are labelled as A, B, C, D, E.
Study the diagram to answer the questions given
P: | Active secretion of H+ and K+ into the filtrate occurs in which parts? |
Q: | Conditional reabsorption of Na+ and water is a function of |
R: | Reabsorption of water is minimum in which segment? |
Choose the correct option:
P | Q | R | |
1. | B,D | C | E |
2. | A,B,C | C | E |
3. | D,E | D | C |
4. | A,D,E | E | C |
Blood present in afferent arteriole and efferent arteriole
will differ in
I. Amount of protein. II. Number of blood cells.
III. Amount of glucose. IV. Amount of urea.
1. I, II, III & IV
2. III & IV only
3. IV only
4. III only
Which of the following cannot be expected in the filtrate when it arrives to descending limb of Henle’s loop?
I. | Albumin | II. | Glucose |
III. | Urea | IV. | Amino acid |
1. I, II, III & IV
2. I only
3. II, IV only
4. I, II & IV
The osmotic concentration of glomerular filtrate is the highest at the bottom of the U-shaped Henle’s loop. It is about ____________ mOsmL-1
1. 300
2. 600
3. 900
4. 1200