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प्रश्न
The main nitrogenous waste formed in the human body:
पर्याय
Uric acid
Ammonia
Urea
Creatinine
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उत्तर
Urea
Explanation:
It is the main waste product classified as nitrogenous. Together with other protein waste products, it is generated in the liver and removed by the kidneys as urine.
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संबंधित प्रश्न
Give biological reasons for the following statements: There is frequent urination in winter than in summer
The diagram given alongside shows a section of a human kidney. Study the diagram carefully and answer the questions that follow:
- Label the parts numbered 1 to 4.
- Why does part 2 have a striped appearance?
- What is the fluid that passes down part 4? Name the main nitrogenous waste present in it.
- Mention the structural and functional units of kidneys.
- Name the two major steps in the formation of the fluid mentioned in (c).
Fill in the blank.
.................. produces bile pigments from the heamoglobin of broken RBCs.
Write down the functional activity of the following parts,
Renal artery ………………
Choose the odd one out in the following series:
Proximal convoluted duct, loop of Henle, vein.
Name the following:
Functional unit of kidney.
The following diagram represents a mammalian kidney tubule (nephron) and its blood supply.
Parts indicated by the guidelines 1to 8 are as follows:
1. Afferent arteriole from renal artery
2. Efferent arteriole
3. Bowman's capsule
4. Glomerulus
5. Proximal convoluted tubule with blood capillaries
6. Distal convoluted tubule with blood capillaries
7. Collecting tubule
8. U-shaped loop of Henle
Study the diagram and answer the question that follow:
Which structure contains the lowest concentration of urea?
Complete the following sentence with appropriate word:
The sum total of all the chemical reactions taking place in the cell is known as ______.
Plants use completely different process for excretion as compared to animals. Which one of the following processes is NOT followed by plants for excretion?
Explain the importance of soil for plant growth.
