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प्रश्न
Explain the difference between the excretory system of humans and plants.
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उत्तर
| Excretory system in humans | Excretory system in plants |
| Humans have a well-developed excretory system for the elimination of nitrogenous wastes. | Plants do not have a well-developed excretory system for the elimination of nitrogenous wastes. |
| The human excretory system comprises the kidneys, blood vessels that join them, ureters, urinary bladder, and urethra. | Plants use different strategies for excretion. |
| Excretion is in the form of urine produced to filter out the waste products, like urea and uric acid, from the blood. | Excretion is by means of tannins, gums, essential oils, etc stored in special cells. |
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संबंधित प्रश्न
State whether the following statement is true or false:
Some organisms store wastes in body parts.
Bowman’s capsule and tubule taken together make a ______.
A dialysis machine contains long tubes coiled in a tank containing dialysing solution:
What does the dialysing solution contain?
In which of the following are the largest amounts of nitrogen excreted from a mammalian body?
Differentiate between
tannins and resins
One of the following sets of body parts or substances or processed, pick out the one item which overall includes the remaining foir.
Skin, liver, lungs, kidneys, excretion.
Write down the functional activity of the following parts,
Renal artery ………………
Differentiate between the following pairs of term :
Renal pelvis and renal papilla
Explain in your own words with suitable examples.
How does excretion occur in human beings?
Choose the correct answer:
Composition of extracellular fluid is regulated by ___________
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?
Given below is a highly simplified diagram of the human kidney cut open longitudinally. Answer the question that follow:
Mention two functions of the kidney.
Given below is a highly simplified diagram of the human kidney cut open longitudinally. Answer the question that follow:
Write two differences in composition of the blood flowing through the blood vessels, 'A' and 'B'.
Choose the Odd One Out:
Choose the correct option.
In human beings, uric acid is formed due to metabolism of ______.
The number of ATP molecules required to produce one molecule of urea from the omithine cycle.
Why is the rate of breathing in aquatic organisms much faster than in terrestrial organisms?
