a. Name the region in the kidney where the above structure is present? b. Name the parts labelled 1, 2, 3, and 4. c. Name the stages involved in the formation of urine. d. What is the...
(a) Define excretion. (b) Name the functional units of the kidneys. (c) Why does the cortex of the kidney show a dotted appearance? (d) Mention two functions of the kidney. (e) Write two differences...
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...
(a) Name all the organ-systems shown completely or even partially.(b) Name the parts numbered 1 to 5. (c) Name the structural and functional unit of the part marked ‘1’.(d) Name the two main organic...
(a) Is it a longitudinal section or a cross-section? (b) Name the parts numbered 1-5. (c) Which area/part (give its name and number given on the diagram) which contains the following: (i) Malpighian...
Solution – dialysis machine means an artificial kidney . From the radial artery the blood is led in the patients arm through the machine . Here the urea and excess salts are removed and the purified...
Solution - Ultrafiltration : it is a high pressure filtration through a semi permeable membrane in which the colloid particles are kept while the small size solutes and solvent are made to...
(b) Micturition (c) Renal pelvis (d) Urea (e) Osmoregulation Solution – (a) Ultrafiltration : it is a high pressure filtration through a semi permeable membrane in which the colloid particles are...
In a nephron, the _______ flows through the ________ under great pressure. The reason for this great pressure is that the ________ (outgoing) _________ is narrower than the __________ (incoming)....
Column I Column II (a) Bowman’s capsule (i) Renal artery (b) Contains more CO2 (ii) Regulates amount of and less urea water excreted (c) Antidiuretic hormone (iii) Renal vein (d) Contains more...
Solution - urea, creatinine, and uric acid are the main nitrogenous metabolic waste excreted out by mammals including human beings .
(b) Renal cortex and renal medulla (c) Renal pelvis and renal papilla (d) Urea and urine (e) Excretion and secretion Solution – difference : (a) Bowman’s capsule and malpighian capsule....
Solution – in summers to keep ourselves hydrated we drink a lot of water . Water in take is more but we urinate less number of times . But in winters we drink less and go to urinal more times . In...
Solution – if we donated one kidney to a needy person , then the left one kidney alone is capable to carry out our needs . The donor can live a normal life as before .
Solution – kidney removes the waste from the body . Along with this , it also regulates the composition of the blood . This is known as osmoregulation - it implies the regulation of osmotic pressure...
Solution – uriniferous tubule are small minute tubules located in the kidney . It comprises of proximal tube , the intermediate tube , the distal tube and the collecting duct . It receives impure...
Solution - Excretion plays an important role in maintaining the homeostatic condition of the body .There are numerous substances in our body that need to be removed regularly . if it is not...
(b) Henle’s loop (c) Ureter (d) Renal artery (e) Urethra Solution – functional activity : (a) glomerulus – filters plasma to produce glomerular filtrate (b) henle’s loop – reabsorbs water an calcium...
(b) Skin, liver, lungs, kidneys, excretion. (c) ADH, water, pituitary, osmoregulation, urine. (d) CO2, bile pigments, water, excretion, urea. Solution – The term common to all is ultrafiltration ....
Solution – correct sequencing of the terms are as follows : Afferent arteriole, glomerulus, efferent arteriole, capillary network, renal vein.Renal artery, kidney, ureter, urinary bladder,...
(b) The outer region of kidney containing the Bowman’s capsule. (c) The tuft of capillaries inside the Bowman’s capsule. (d) The part of kidney tubules where the term urine is first used for the...
Correct option - ( b ) Explanation – liver is responsible for the formation of urea
Correct option - ( c ) Explanation – sweating in real sense is not an excretory activity . While passing faecal matter , removing urea and carbon dioxide from the body are all excretory...
Correct option - ( a ) Explanation - proximal convoluted tubule reabsorbs the Maximum amount of water from the glomerular filtrate . Hence correct answer is proximal convoluted tubule
Correct option - ( c ) Explanation – excretion primarily involves removal of nitrogenous waste . It is chemical waste