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प्रश्न
Given below is a simple diagram of the human kidney cut open longitudinally. Answer the following questions:
c
(v) Write two differences in the composition of the blood flowing through blood vessels A and B.
उत्तर
(i) Excretion is the process of removal of all harmful and unwanted products especially nitrogenous products from the body of living beings.
(ii) The units of the kidney are nephrons.
(iii) The dotted cortex of kidney shows the presence of nephrons (Bowman’s Capsule) in this region.
(iv) Two functions of kidney are:
(a) It expels out all the nitrogenous products produced in the body.
(b) It helps in osmoregulation.
(v) Two differences in the composition of blood flowing through blood vessels A and B are:
(a) A contains blood having a large amount of water and nitrogenous wastes while blood in B is thicker and free from toxic substances.
(b) B carries more O2 and nitrogenous waste products as it is Renal Artery. A carries CO2 and no nitrogenous products.
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संबंधित प्रश्न
Define excretion
What is the role of glomerulus in the kidney?
Given below is a set of five terms. Rewrite the terms in their correct order so as to be in logical sequence.
Afferent arteriole, renal vein, secondary capillary network, glomerulus, efferent arteriole.
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?
Differentiate between:
Ureter and Urethra.
Give Technical Term:
The duct which transports urine from the kidney to the urinary bladder.
Choose the correct option.
In human beings, uric acid is formed due to metabolism of ______.
Given below is a list of substances - select the ones that need to be eliminated from the body.
Glucose, excess water, amino acids, urea, carbon dioxide, excess common salt, glycogen, uric acid.
Give two examples of the following:
Nitrogenous waste
The statement given below is false. Rewrite the correct form of the statement by changing the underlined word.
The pigment urochrome is the breakdown product of the haemoglobin of dead RBCs.
