Excretory Products and Their Elimination (Class - XI)
| Description: Excretory Products and their Elimination | |
| Number of Questions: 15 | |
| Created by: Rachana Sahu | |
| Tags: Excretory Products and their Elimination XI Biology Types of Nitrogenous Wastes in Organisms Excretion in Organisms Urine Formation Reabsorption and Concentration of the Filterate Tubular Secretions Regulation of Kidney Function Role of Other Organs in Excretion Disorders of Excretory System |
Match the following:
| a. Platyhelminthes | 1. They have antennal glands to perform the excretory functions. |
| b. Annelids | 2. They have protonephridia as the excretory structures. |
| c. Crustaceans | 3. They have tubular excretory structures called nephridia. |
Which of the following statements is/are false?
a. Kidneys are situated between the levels of last thoracic and third lumbar vertebra close to the dorsal inner wall of the abdominal cavity. b. Malpighian tubules are the excretory structures of most of the insects. c. Renal tubule is a tuft of capillaries formed by the afferent arteriole.
Which of the following glands in a human body is located on top of each kidney?
Juxta glomerular apparatus(JGA) is a special sensitive region formed by cellular modifications. JGA is formed in which of the following?
a. Distal convoluted tubule b. Afferent arteriole c. Glomerulus
In the human excretory system, which of the following are in pairs?
a. Urinary bladder b. Kidney c. Urethra d. Ureters
Kidney functioning is efficiently monitored and regulated by hormonal feedback mechanisms. Which of the following is/are involved in it?
a. Heart b. Hypothalamus c. Juxta glomerular apparatus
Which of the following organs secretes bile-containing substances like bilirubin, biliverdin, etc, most of which, ultimately pass out along with digestive wastes?
Which of the following statements is/are false?
a. The collecting duct extends from the cortex of the kidney to the inner parts of the medulla. b. Each human kidney has nearly one million complex tubular structures called Columns of Bertini. c. The collecting duct can reabsorb large amounts of water to produce a concentrated urine.
Which of the following is not a property of the Proximal Convoluted Tubule?
A concentrated urine is produced by mammals. Which of the following play(s) a significant role in this?
a. Henle’s loop b. Vasa recta c. Bowman's capsule
Which of the following animals excrete nitrogenous wastes as uric acid in the form of pellet/paste with a minimum loss of water?
a. Reptiles b. Birds c. Mammals d. Aquatic amphibians
The tubular epithelial cells in different segments of nephron perform reabsorption either by active or by passive mechanisms. Which of the following substances in the filtrate are reabsorbed by active mechanism?
a. Nitrogeneous waste b. Water c. Glucose d. Amino acids
Match the following:
| a. Uremia | 1. In this, malfunctioning of kidneys leads to accumulation of urea in blood. |
| b. Renal calculi | 2. In this, inflammation of glomeruli of kidney occurs. |
| c. Glomerulonephritis | 3. In this, stone or insoluble mass of crystallised salts are formed within the kidney. |
Which of the following is/are the major forms of nitrogenous wastes excreted by the animals?
a. Urea b. Ammonia c. Phosphate d. Uric acid
Which of the following statements is/are false?
a. Atrial Natriuretic Factor can cause dilation of blood vessels and thus, increase the blood pressure. b. Presence of Glycosuria and Ketonuria in urine are indicative of diabetes mellitus. c. Osmoreceptors in the body are activated by changes in blood volume, body fluid volume and ionic concentration.