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प्रश्न
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).
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उत्तर
- 1: Cortex
2: Medulla
3: Pelvis
4: Ureter - Medulla is composed of a striped substance arranged in several pyramids. Hence, the medulla (b) has a striped appearance.
- Urine passes down part ‘4’, i.e., the ureter. The main nitrogenous substance present in it is urea.
- Nephrons are the structural and functional units of the kidneys.
- The two major steps in the formation of urine are ultrafiltration and selective reabsorption.
संबंधित प्रश्न
Name the Following
The organ which produces urea.
Name the two parts of a plant through which its gaseous waste products are released into the air.
Define excretion.
Tick the most appropriate answer.
The process of removing waste from the body is called
Answer the following in short.
Define transpiration in plants.
Given below is a highly simplified diagram of the human kidney cut open longitudinally. Answer the question that follow:
Name the functional units of the kidneys.
Explain the Term: Ureter
Name the Following
The division of the kidney which is light in colour and subdivided into conical renal pyramids.
Name the Following
The process by which kidneys regulate the water content of the body.
In a person the tubule part of the nephron is not functioning at all. What will its effect be on urine formation?
