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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
Define excretion. Write the four organs of the human urinary system in their correct sequence.
Tick the most appropriate answer.
The opening of the urinary bladder is called
Fill in the blank.
.................. carries urine from the kidney to the urinary bladder.
Differentiate between the following pairs of term :
Excretion and katabolism
Define the following term:
urea
The diagram given alongside represents an organ system in the human body. Study the same and answer the questions that follow:
- Identify the system
- Label the parts marked 2 and 4. Mention the function of part 5.
- Name the structural and functional units of the part marked 1.
- What is the fluid that accumulates in part 3?
Which is the main nitrogenous waste present in it? - Draw a neat, labelled diagram showing the longitudinal section of part 1.
Name the following:
Organ which stores urine.
Name the Following
The act of passing urine.
Write the functional activity of the following structure:
Ureter
Choose the correct option.
Person suffering from kidney stone is advised not to have tomatoes as it has _______.
The functional unit of kidney is ______.
Both PCT and DCT lie in the ______
If a person's urine report shows the presence of proteins, it indicates ______.
Identify the labels (A-F) in the given diagram of excretory system in human beings.
The Malpighian corpuscle lies in the______ of the kidney.
Where is the dirty blood in our body filtered?
Thin muscular tubes carry urine from the kidney to the urinary bladder.
Rearrange the jumbled words and fill in the blanks in the following passage to make it a meaningful description.
The human urinary system consists of a pair of ______ ( nyedik), which form the urine; a pair of ______ (ertreu), which conduct the ______ (neuri) from kidneys to the ______ (naryuri drebdal) for storage of urine and a ______ (reuhrat) through which the urine is voided by bladder contractions.
Statement I: In the nephron, the descending limb of loop of Henle is impermeable to water and permeable to electrolytes.
Statement II: The proximal convoluted tubule is lined by simple columnar brush border epithelium and increases the surface area for reabsorption.
In the light of the above statements, choose the correct answer from the options given below:
