Question 2 :
Which of the following is not an accessory excretory organ of vertebrates?<br/>

Question 3 :
In which of the following points pulmonary artery isdifferent from pulmonary vein?<br>

Question 4 :
The process of filtering the blood by artificial kidney is known as

Question 5 :
If liver from body is removed, then which component of&#160;blood will increase?<br/>

Question 8 :
The 'Urinary System' of the human body consists of how many organs?

Question 9 :
Assertion: Anterior lobe of pituitary is attached to hypothalamus by a vein<br><br>Reason: This attachment is done through a portal vein

Question 10 :
The conversion of protein waste, the ammonia into urea occurs mainly in

Question 17 :
State whether the following statements are true or false:<br/>In the vascular bundle of leaf, xylem is located towards the adaxial side of the leaf.

Question 23 :
The wall of urinary bladder in humans shows a thick layer of smooth muscle called as

Question 24 :
Match the item in column I with those in column II and select the correct option given below:<br/><table class="wysiwyg-table"><tbody><tr><td><br/></td><td>Column I<br/>(Function)&#160;</td><td></td><td>Column II <br/>(Part of Excretory System)</td></tr><tr><td>a.</td><td>Ultrafiltration&#160;</td><td>i.</td><td>Henle's loop</td></tr><tr><td>b.</td><td>Concentration&#160;</td><td>ii.</td><td>Ureter</td></tr><tr><td>c.</td><td>Transport of urine</td><td>iii.</td><td>Urinary bladder&#160;</td></tr><tr><td>d.</td><td>Storage of urine</td><td>iv.</td><td>Malpighian corpuscle</td></tr><tr><td></td><td></td><td>v.</td><td>Proximal convoluted tubule&#160;</td></tr></tbody></table>

Question 25 :
Given below are four statements (a-d) regarding human blood circulatory system.&#160;<br/>(a) Arteries are thick-walled and have narrow lumen as compared to veins.<br/>(b) Angina is acute chest pain when the blood circulation of the brain is reduced.&#160;<br/>(c) Persons with blood group AB can donate blood to any person with any blood group under ABO system.<br/>(d) Calcium ions play a very important role in blood clotting.<br/><br/>Which two of the above statements are correct?<br/>

Question 28 :
The characteristic(s) common to urea, uric acid, and ammonia is/are&#160;<br/>(i) They are nitrogenous wastes.&#160;<br/>(ii)&#160;They all need a very large amount of water for excretion.<br/>(iii)&#160;They are all equally toxic.&#160;<br/>(iv) They are produced in the kidneys.<br/>