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प्रश्न
Study the diagram given alongside and then answer the question that follow:
Name the stages involved in the formation of urine.
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उत्तर
Urine formation occurs in two steps - ultrafiltration and reabsorption.
संबंधित प्रश्न
Match structures given in Column I with functions given in Column II.
| Column I | Column II | ||
| (i) | Stomata | (a) | Absorption of water |
| (ii) | Xylem | (b) | Transpiration |
| (iii) | Root hairs | (c) | Transport of food |
| (iv) | Phloem | (d) | Transport of water |
| (e) | Synthesis of carbohydrates |
What do kidneys excrete?
The following diagram represents a mammalian kidney tubule (nephron) and its blood supply.
Parts indicated by the guidelines 1 to 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:
Where does ultrafiltration take place?
Differentiate between:
Renal cortex and Renal medulla.
Choose the correct option.
Which one of the following organisms would spend maximum energy in the production of nitrogenous waste?
The tadpole of frog lives in water, hence its mode of excretion is ______.
Bilirubin and Biliverdin are pigments which are ____________.
Plants use completely different process for excretion as compared to animals. Which one of the following processes is NOT followed by plants for excretion?
Certain organisms that are aquatic in habitat, tolerate only a narrow range of salinity. What term is given to such animals?
Give two examples of the following:
Water-soluble vitamins
