HARD
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A patient suffering from cholera is given saline drip because

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Important Questions on Excretory Products and their Elimination

EASY
A decrease in blood pressure/volume will not cause the release of
EASY
Nitrogenous waste is excreted in the form of pellet or paste by:
MEDIUM
Which of the following does not favor the formation of large quantities of dilute urine?
EASY
The major nitrogenous excretory product in mammals is:
EASY
Which of the following would help in the prevention of diuresis?
HARD
Match the items given in Column I with those in Column II and select the correct option given below:
 
  Column – I   Column – II (Part
  Function   Part of Excretory System)
a. Ultrafiltration i. Henle’s loop
b. Concentration of urine ii. Ureter
c. Transport of urine iii. Urinary bladder
d. Storage of urine iv. Malpighian corpuscle
    v. Proximal convoluted tubule
HARD
Study the following statements
I) In embryonic stage, the interventricular septum of human heart has foramen ovale.
II) Tunica media of human artery has elastic lamina on either side.
III) Excretory organs of arachnids are coxal glands.
IV) Angiotensin II stimulates the Juxtaglomerular cells to secrete the enzyme renin.

Pick up the incorrect statements from the above:

MEDIUM

Match List I and List II

  List I   List II
A Taenia I Nephridia
B Paramoecium II Contractile vacuole
C Periplaneta III Flame cells
D Pheretima IV Uricose gland

Choose the correct answer from the options given below: 

EASY

Following events are associated with blood pressure regulation by the kidney.

A) Formation of Angiotensin II

B) Secretion of Aldosterone

C) Fall in blood pressure

D) Reabsorption of Na+  from distal convoluted tubule

E) Release of Renin

F) Restoration of normal blood pressure

G) Conversion of Angiotensinogen to Angiotensin I

H) Activation of Juxta Glomerular cells

The correct regulation sequence is

EASY
Which of the following factors is responsible for the formation of concentrated urine?
MEDIUM
Discuss the statement: The nature of nitrogenous waste and its excretion depends on the availability of water. Explain it using any two examples.
EASY
The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of :
MEDIUM

Give appropriate biological or technical terms for the following:

Process of maintaining water and salt balance in the blood.

EASY
A patient suffering from cholera is given saline drip because
EASY
Name the major excretory products. How are these products eliminated from the body?
EASY

Solenocytes are the main excretory structures in