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प्रश्न
What gaseous waste products are excreted by plants?
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उत्तर
The gaseous waste products excreted by plants are carbon dioxide, oxygen, and water vapour.
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संबंधित प्रश्न
Draw a diagram of the human excretory system and label the various parts.
the Biological/technical term Pigment providing colour to urine.
Draw a neat labelled diagram of the human excretory system.
The excretory unit in the human excretory system is called:
The excretory organs in an earthworm are:
(a) nephridia
(b) nephrons
(c) raphides
(d) ureters
The organs A of a person have been damaged completely due to which too much of a poisonous waste material B has started accumulating in his blood, making it dirty. In order to save this person's life, the blood from an artery in the person's arm is made to flow into long tubes made of substance E which are kept in coiled form in a tank containing solution F. This solution contains three materials G, H and I in similar proportions to those in normal blood. As the person's blood passes through long tubes of substance E, most of the wastes present in it go into solution. The clean blood is then put back into a vein in the arm of the person for circulation.
(a) What are organs A?
(b) Name the waste substance B.
(c) What are (i) E, and (ii) F?
(d) Name G, H and I.
(e) What is the process described above known as?
State if the following statement is true or false. Correct the statement if it is false.
Liver produces bile pigments from the hemoglobin of broken RBCs.
Tick the most appropriate answer.
Quinine is used in the treatment of
Differentiate between the following pairs of term :
Renal cortex and renal medulla
Given below is a simplified diagram of the human kidney cut open longitudinally. Answer the questions that follow.
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- Define excretion.
- Why does the cortex of the kidney show a dotted appearance?
- Why does the medulla of the kidney show a striped appearance?
- Write two differences in the composition of the blood flowing through the blood vessels 'A' and 'B'.
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?
Answer the following question.
State the role of liver in urea production.
Answer the following question.
Amphibian tadpole can afford to be ammonotelic. Justify.
Among the following animals, the best conserver of water is ______.
Explain the importance of soil for plant growth.
Choose the odd one out in the following set and write the category for the remaining terms:
Give reason:
Excretion is a necessary process of our body.
