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301.

Match column I with column II and select the correct option from the codes given below `{:("Column I","Column II"),(A." Nephridia",(i)." Crustaceans"),(B." Malpighian tubules",(ii)." Annelids"),(C." Anetennal gland or green glands",(iii)." Insects"):}`A. A-(i),B-(ii),C-(iii)B. A-(iii),B-(ii),C-(i)C. A-(ii),B-(iii),C-(i)D. A-(ii),B-(i),C-(iii)

Answer» Correct Answer - C
302.

Forest of nephridia are present inA. Pharyngel regionB. Clitellar regionC. Anal regionD. None of these

Answer» Correct Answer - B
(B) The number of metanephridia varies from 2000-2500 in clitellar segment (but only 200-250 in each of the many other segments).
303.

Which is true about the difference between cortical and juxtamedullary nephrons?A. Most nephrons are juxtamedullary.B. The efferent arterioles of cortical nephrons give rise to most of the vasa rectaC. The afferent arterioles of the juxtamedullary nephrons give rise to most of the vasa recta.D. Juxtamedullary nephrons generate a hyperosmotic medullary interstitium.

Answer» Correct Answer - D
Cortical nephrons either have short or do not have loops of Henle. Only juxtamedullary nephrons have long loops of Henle, which plunge into the renal medulla and create a hypersomotic interstitium via counter current multiphication.
304.

Which one of the following is not normally excreted in urine?A. Uric acidB. HaemoglobinC. ketone bodiesD. Hipuuric acid

Answer» Correct Answer - B
Haemoglobin is not normally excreted in urine. If haemoglobin gets excreted in urine, the condition is known as haemoglobinuria
305.

In crustaceans, the excretory functions are performed byA. Antennal glandsB. Green glandsC. Both 1 & 2D. Malpighian tubules

Answer» Correct Answer - C
306.

Mammals have the ability to produceA. isotnic urineB. hypertonic urineC. hypotonic urineD. acidic urine

Answer» Correct Answer - B
307.

In distal convoluted tuble….. Is absorbed due to the presence of hormone aldosterone.A. `Na^(+)`B. `Ca^(2+)`C. hypertonic urineD. water

Answer» Correct Answer - A
308.

Excretion is removal ofA.  Carbon dioxideB.  Harmful and useless ingredients C.  Extra waterD. Metabolic waste products

Answer» Correct Answer - B
Excretion is removed of harmful and useless ingre -dients.
309.

The branch of renal artery entering the glomerulus is `"_________"`

Answer» Correct Answer - Afferent arteriole
310.

Arcuate artery is found inA. kidneyB. lungsC. skinD. all of the above

Answer» Correct Answer - A
Ammonia is excretory material in fresh water /bony fishes.
311.

Name the branch of artery which take away blood from blomerulus

Answer» Correct Answer - Efferent arterioles
312.

Removal of ammonia from body is called

Answer» Correct Answer - Ammonotelism
313.

Number of nephron in each kidney is

Answer» Correct Answer - 1 Million
314.

Name the conical masses of medulla

Answer» Correct Answer - Medullary pyramids
315.

Length of kidney in human being is

Answer» Correct Answer - 10-12 cm
316.

Inner zone of kidney is known as

Answer» Correct Answer - Medulla
317.

Which of the following statements is correct?A. the decending limb of loop of henle is impermeable to waterB. the ascending limb of loop of henle is permeable to waterC. the decending limb of loop is permeable to electroytesD. the ascending limb of loop henle is impremeable to water

Answer» Correct Answer - D
The descending limb of loop of Henle in permeable to water.
The ascending limb o loop Henle is impermerable to water.
The descending limb of loop of Henle is impermeable to electrolytes.
318.

Outer zone of kidney is known as

Answer» Correct Answer - Cortex
319.

Average weight of kidney is aboutA. `1.2` to `1. 5` kgB. `1.2` to `1.7` kgC. `0.12` to `0.15` kgD. `0.12` to `0.17` kg

Answer» Correct Answer - D
Average weight of kidney is about 0.12 to 0.17 kg (Lee. 120 to 170 gm).Â
320.

Select the correct option representing the parts of nephron that respectively absorb (i).______ glucose, (ii)._____amino acids, (iii).______inorganic ions `(Na^(+),K^(+),Cl^(-))` and (iv).____urea in maximum.A. `{:("(i)","(ii)","(iii)","(iv)"),("DCT","Descending limb of loop of Henle","DCT","DCT"):}`B. `{:("(i)","(ii)","(iii)","(iv)"),("DCT","Descending limb of loop of Henle","PCT","DCT"):}`C. `{:("(i)","(ii)","(iii)","(iv)"),("PCT","PCT","PCT","Ascending lib of loop of Henle"):}`D. `{:("(i)","(ii)","(iii)","(iv)"),("PCT","DCT","DCT","Ascending limb of loop of Henle"):}`

Answer» Correct Answer - C
321.

Projection of renal pelvis called

Answer» Correct Answer - Calyces
322.

Average weight of human kidney in human beings is

Answer» Correct Answer - 120 to 170 gm
323.

Funnel shaped space in kidney is called

Answer» Correct Answer - Renal pelvis
324.

Hippuric acid, creatinines and ketonews are added to urine throughA. selective reabsorptionB. glomerular filtrationC. tubular secretionD. both b and c

Answer» Correct Answer - D
325.

Complete the following paragraph by selecting the option that correctly fils the blanks (i)- (iv) The kidney have built-in mechanisms for the regulation of glomerular filtration rate. One such efficient mechanism is carried out by (i)._____ It is a special sensitive region formed by cellular modifications in the (ii)._________ and the (iii)._________ at the location of their contact. A fall in GFR can activate the JG cells to release (iv).________ which can stimulate the glomerular blood flow the thereby brings GFR back to normalA. `{:("(i)","(ii)","(iii)","(iv)"),("ANF","PCT","Efferent arteriole","Angiotensin"):}`B. `{:("(i)","(ii)","(iii)","(iv)"),("ANF","DCT","Afferent arteriole","Renin"):}`C. `{:("(i)","(ii)","(iii)","(iv)"),("JGA","PCT","Efferent arteriole","Angiotensin"):}`D. `{:("(i)","(ii)","(iii)","(iv)"),("JGA","DCT","Afferent arteriole","Renin"):}`

Answer» Correct Answer - D
326.

The notch on the centre of inner concave surface of kidney is

Answer» Correct Answer - Hilum
327.

Consider the following statements each with one or two blanks. (i). Towards the centre of the inner concave surface of the kidney is a notch called (1) through which ureters, blood vesels and nerves enter. (ii). The medulla of kidney is divided into a few conical masses called (2) projecting into the (3). (iii). Glomerulus is a tuft of capillaries formed by the (4). artery. Blood from the glomerulus is carried away by an (5) artery. Which one of the following options correctly fills the blanks in any two of the statements?A. (1)-renal pelvis, (2)-calyces,(3)-medullary pyramidsB. (2)-medullary pyramids, (3)-alyces, (4)-afferent, (5)-efferentC. (2)-columns of bertin, (3)-chordae tendinae, (4)-efferent, (5)-afferentD. (1)-filum, (4)-efferent, (5)-afferent

Answer» Correct Answer - B
328.

The kidneys of adult mammals areA. OpisthonephrosB. PronephrosC. MesonephrosD. Metanephros

Answer» Correct Answer - D
(d) In amniotes (reptiles, birds and mammals) kidneys are mesonephros in embryonic life but are metanephros in adult stage.
329.

Columns of bertin in the kidneys of mammals are formed as extensions ofA. cortex in medullaB. cortex in pelvis.C. medulla in pelvisD. pelvis in ureter.

Answer» Correct Answer - A
330.

Recation of ornithine cycle occur inA. liver to produce areaB. kidney to produce urineC. liver to produce ammoniaD. kidney to from urea

Answer» Correct Answer - A
Reactions of ornithine cycle occur in liver to produce area.
331.

The glomerular filtrate containsA. Blood minus cells and proteinsB. Blood minus cellsC. Blood minus proteinsD. Plasma minus cells and proteins

Answer» Correct Answer - A
(a) Glomerular filtrate = Blood - (Blood corpuscles + plasma proteins)
= Blood plasma - proteins
332.

JG cells, under low glomerular blood flow releaseA. AngiotensinI iB. Angiotensin iiC. AldosteroneD. ReninÂ

Answer» Correct Answer - D
 Under low glomerular blood how, juxtaglomerular cells release renin.Â
333.

I. Renal capsule is the innermost tough covering of fibres connective tissue. II.Renal fascia is the middle cover invading adipose tissue.A. Statement I is correctB. Statement II is correctC. Both statements are correctD. Both statements are incorrect

Answer» Correct Answer - A
334.

Loop of Henle is connected withA. excretory systemB. nervous systemC. reproductive systemD. muscular system

Answer» Correct Answer - A
Functional kideny of tadpole in frog is pronephros.
335.

JG cells, under low glomerular blood flow releaseA. Angiotensin IB. Angiotensin IIC. AldosteroneD. Renin

Answer» Correct Answer - D
336.

Urine is always fluid except inA. Reptiles and amphibiansB. Birds and reptilesC. Birds and mammalsD. Reptiles and mammals

Answer» Correct Answer - B
337.

In Housefly the excretory organs areA. NephridiaB.  Flame cells C. Malpighian tubulesD.  Kidneys

Answer» Correct Answer - C
In Housefiy (insect) the excretory organs are malpighian tubules.Â
338.

Urine is always fluid except inA.  Reptiles and amphibiansB. Birds and mammalsC. Birds and reptilesD. Reptiles and mammalsÂ

Answer» Correct Answer - C
 Urine is always fluid except in Uricotelic animals (birds and reptiles).Â
339.

A person is undergoing prolonged fasting. His urine would contain absormal quantities ofA. ketonesB. glucoesC. amino acidsD. fats

Answer» Correct Answer - A
Ducts of Bellini are found in kidney.
340.

A person is undergoing prolonged fasting. His urine would contain absormal quantities ofA. fatsB. amino acidsC. glucoseD. ketones

Answer» Correct Answer - D
Under fasting conditions, liver produces large amount of ketone bodies which are associated with high rate of fatty acid oxidation. Presence of excess ketone bodies in urine is termed as ketonuria.
341.

Select the group of animals adapted to ammontelism, guanotelism and ureotelism respectivelyA. Tadpole larva of Frog, Spider PigeonB. Scorpion, Turtle, LabeoC. Catla, Penguin, CatD. Cobra, Cockroach, Bomay Duck

Answer» Correct Answer - C
342.

Excessive formation of uric acid may result inA. Rheumatoid arthritisB. OsteoarthritisC. OsteoporosisD. Gout

Answer» Correct Answer - D
343.

Ureotelism occurs inA. MammalsB. Aquatic insectsC. TadpolesD. Birds

Answer» Correct Answer - A
344.

Marcello Malpighi after whom malpighian corpuscles are named was born inA. GermanyB. AustraliaC. AustriaD. Italy

Answer» Correct Answer - D
345.

Which one of the following is correct for a normal human?A. pH of urine is around 8B. On an average, 75-80 mg of urea is excreted via urine per day.C. Presence of ketone bodies in urine is an indicator of diabetes mellitusD. Relaxation of smooth muscles of bladder and simultaneous contraction of urethral sphincter causes release of urine.

Answer» Correct Answer - C
In a person suffering from diabetes mellitus, degradation of fat increases resulting in the production of ketone bodies. These are acidic and poisonous and get excreted out in urine. Therefore, presence of ketone bodies in urine is an indicator of diabetes mellitus. pH of urine is 6. On an average, 25-30 gm of urea is excreted via urine daily. Contraction of smooth muscles of the bladder and simultaneous relaxation of the urethral sphincter causes release of urine.
346.

What will happen if the stretch receptors of the urinary bladder wall are totally removed?A. there will be no voluntary control over micturitionB. urine will continue to collect normally in the bladderC. there will be no micturitionD. urine will collect in urethra.

Answer» Correct Answer - A
Stretch receptors of the urinary bladder are responsible for stretch reflex. If these are removed then autonomic nervous system control will not be there and bladder will always remain full and frequently pass urine into urethra.
347.

Man isA. AmmonotelicB. UreotelicC. UricotelicD. None of the above

Answer» Correct Answer - B
348.

Malpighian body is present inA. skinB. kidneyC. TestesD. Ovaries

Answer» Correct Answer - B
349.

The yellow colour of urine is due to the presence ofA. Uric acidB. UreaC. UrochromeD. Melanin

Answer» Correct Answer - C
350.

The yellow colour of urine is due to the presence ofA. ureaB. uric acidC. urochromeD. bilirubin

Answer» Correct Answer - C
The yellow colour of the urine is due to the presence of pigment urochrome, which is a breakdown product of haemoglobin from worn out RBCs.