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प्रश्न
What is the function of excretory system in humans?
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उत्तर
The main function of excretory system is to remove waste and harmful by-products of the normal metabolic processes from the body.
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संबंधित प्रश्न
Draw the well-labelled diagram of the human excretory system
Define excretion.
Fill in the following blank with suitable word:
The organs which extract the nitrogenous wastes from the blood are ..........
What is the name of the tubes which connect the kidneys to bladder?
A dialysis machine contains long tubes coiled in a tank containing dialysing solution
Name the main waste which passes into the dialysing solution.
The procedure of cleaning the blood of a person by using a kidney machine is known as:
(a) ketolysis
(b) hydrolysis
(c) dialysis
(d) photolysis
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?
Tick the most appropriate answer.
The process of removing waste from the body is called
Fill in the blank.
.................. produces bile pigments from the heamoglobin of broken RBCs.
Differentiate between
tannins and resins
Write down the functional activity of the following parts,
Henle's loop ………………
Write down the functional activity of the following parts,
Renal artery ………………
Given below is a diagram of a human kidney, cut open longitudinally. Answer the following:
(i) Give definition of excretion.
(ii) Name the unit of kidney.
(iii) Why does the cortex of kidney show dotted appearance?
(iv) List the functions of the kidney.
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 (normally) contains the lowest concentration of glucose?
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.
Give Technical Term:
The duct which transports urine from the kidney to the urinary bladder.
Complete the diagram/chart with correct labels/ information. Write the conceptual details regarding it.
What would happen if green plants disappeared from earth?
Why is the rate of breathing in aquatic organisms much faster than in terrestrial organisms?
The main nitrogenous waste formed in the human body:
