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प्रश्न
Fill in the blank.
....................... are present in the stem of pine tree that make the pinewood strong and durable.
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उत्तर
Resins are present in the stem of pine tree that make the pinewood strong and durable.
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संबंधित 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).
Write the functions of Kidney
Name the procedure used in the working of artificial kidney.
In humans, urea is formed in
The diagram below represents a mammalian kidney tubule (nephron) and its blood supply. Parts indicated by the guidelines 1 to 8 are as follows:
1. U-shaped loop of Henle
2. Proximal convoluted tubule with blood capillaries
3. Bowman’s capsule
4. Afferent arteriole from the renal artery
5. Glomerulus
6. Venule to the renal vein
7. Collecting tubule
8. Distal convoluted tubule with blood capillaries Study the diagram and answer the following questions in each case:
(i) Where does ultrafiltration take place?
(ii) Which structure contains the lowest concentration of urea?
(iii) Which structure contains the highest concentration of urea?
(iv) Which structure contains the lowest concentration of glucose?
(v) Where is the most water reabsorbed?
Name the Following
The division of the kidney which is light in colour and subdivided into conical renal pyramids.
Complete the following sentence with appropriate word:
______ is the functional unit of kidney.
In order to maintain homeostasis or constant internal environment . ______' is essential.
Elimination of nitrogenous wastes in the form of uric acid takes place in ____________.
In a person the tubule part of the nephron is not functioning at all. What will its effect be on urine formation?
