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प्रश्न
Differentiate protonephridia from metanephridia.
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 the following:
Excretory organs
One of Harry’s organs is not functioning properly. There is extra fluid build up in his body causing swelling in his ankles and feet.
What should Harry do? Tick the correct answer.
He should see a
Why is excretion necessary? Name the common excretory substance in our body.
Look at the figure given below. It is a section of human kidney as seen from the front.
Name the parts numbered 1-5.
Write constituents of urine.
What is osmoregulation?
Draw a well-labeled diagram of the human excretory system.
Name the Following
The product which is excreted by the liver.
Give Technical Term:
The nitrogenous wastes produced in man.
Give Technical Terms:
Name three substances that are reabsorbed from the renal tubules by the secondary capillaries
Write the functional activity of the following structure: Adrenal gland
Multiple Choice Question: Excretion commonly involves
Circle the odd one.
Podocytes are the cells present on the ______.
Differentiate cortical from medullary nephrons.
Match the parts given in Column I with their physiological processes given in Column II.
| Column I | Column II | ||
| i. | Proximal convoluted tubule | a. | Formation of concentrated urine |
| ii. | Distal convoluted tubule | b. | Filtration of blood |
| iii. | Henle's loop | c. | Reabsorption of 70-80% of electrolytes |
| iv. | Vasa recta | d. | Ionic balance |
| v. | Malpighian body | e. | Counter mechanism |
Maximum amount of urea is present in the blood carried by the ____________.
Kidneys are reddish brown and
Write full form of the following abbreviation:
PCT
Define the following term:
Kidney
