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प्रश्न
Differentiate protonephridia from metanephridia.
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उत्तर
| Sr. No. | Protonephridia | Metanephridia |
| 1. | Primitive kidneys are protonephridia | Tubular excretory structures are |
| 2. | These are found in flatworms. | These are found in annelids and molluscs |
संबंधित प्रश्न
Match the items of column I with those of column II:
| Column I | Column II | ||
| (a) | Ammonotelism | (i) | Birds |
| (b) | Bowman’s capsule | (ii) | Bowman’s capsule |
| (c) | Micturition | (iii) | Bony fish |
| (d) | Uricotelism | (iv) | Urinary bladder |
| (e) | ADH | (v) | Renal tubule |
Ascending limb of Henle’s loop is ______ to water, whereas the descending limb is ______to it.
Tick the most appropriate answer.
A network of capillaries present in the Bowman’s capsule is called
Answer the following in detail.
Draw a labelled diagram of the urinary system in human beings and describe each part.
What is a uriniferous tubule? How does it function?
Choose the correct answer:
Uric acid is excreted by _______________
Choose the correct answer:
Presence of RBCs in urine is called _____________
Name the following:
Organ which stores urine.
Explain the Term: Loop of Henle
State the Location:
Kidneys
Choose the correct option.
Bowman’s capsule is located in kidney in the _______.
In cases of dehydration, the JG cells will release ______.
The collecting tubule of the kidney is important as it helps in ______.
Match the parts of the nephron in column I with their function in column II.
| Column I | Column II | ||
| (a) | Loop of Henle | (i) | Ultrafiltration |
| (b) | Proximal convoluted tubule | (ii) | Secretion of hydrogen ions |
| (c) | Distal convoluted tubule | (iii) | Reabsorption of glucose |
| (d) | Bowman's capsule | (iv) | Concentration of urine |
The filtration units of kidneys are called ____________.
We can produce a concentrated/ dilute urine. This is facilitated by a special mechanism. Identify the mechanism.
Write one specific function each of the following organs in relation with excretion in human beings:
- Renal Artery
- Urethra
- Glomerulus
- Tubular part of nephron
Arrange and rewrite the terms in group in correct order to be in a logical sequence, beginning with the term that is underlined:
Loop of Henle, Distal convoluted tubule, Bowman's Capsule, Proximal convoluted tubule.
