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4

Ammonia is the chief nitrogenous excretory material in

A. reptiles

B. turtles

C. tadpoles

D. amphibians

Correct Answer :

D. amphibians


Related Questions

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4

Malpighian bodies are found in

A. kidney of vertebrates and is involved in ultrafiltration

B. kidney of vertebrates and is involved in passive filtration

C. kidney of vertebrates and is involved in selective reabsorption

D. insects and involved in excretion

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Vitamin excreted in urine by higher vertebrates is

A. A

B. B

C. K

D. C

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Loop of Henle is concerned with

A. excretory system

B. reproductive system

C. nervous system

D. muscular system

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4

The highest concentration of urea is found in

A. renal vein

B. hepatic portal vein

C. dorsal aorta

D. hepatic vein

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In ancestral verterbrates the kidney is known as

A. glomerular type

B. aglomerular type

C. holonephric type

D. metanephric type

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4

Under normal conditions which one is completely reabsorbed in the renal tubule?

A. Urea

B. Uric acid

C. Salts

D. Glucose

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When urine is allowed to stand, it gives strong ammoniacal odour, due to

A. conversion of urea to ammonia via ornithinearginine cycle

B. conversion of urea to ammonia by bacteria

C. conversion of urea and uric acid to ammonia

D. none of these

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4

Kidneys' function is to

A. remove metabolic wastes from the body

B. maintain a constant fluid environment

C. maintain pH of body fluids

D. all of these

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Liquid part of blood having undergone ultrafiltration from the glomerulus and reaching the Bowman's capsule normally would not contain

A. glucose

B. sodium chloride

C. creatinine

D. albumin

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The filtrate from glomerulus contains

A. blood without blood cells and proteins

B. plasma without sugar

C. blood with proteins but without cells

D. blood without urea

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Which of these are uricotelic ?

A. Monkey

B. Lizard

C. Fish

D. Frog

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4

Water absorption in the loop of Henle and distal part of tubule is controlled by

A. antidiuretic hormone

B. aldosterone

C. renin

D. both (a) and (b)

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4

The plasma passing through the glomerulus loses about

A. 50% of its volume as filtrate

B. 20% of its volume as filtrate

C. 80% of its volume as filtrate

D. 40% of its volume as filtrate

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4

Liquid which collects in the cavity of Bowman's capsule is

A. concentrated urine

B. plasma minus blood proteins

C. glycogen and water

D. sulphates and water

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In which part of the excretory system of a mammal can you first use the term urine for the fluid it contains?

A. Bowman's capsule

B. Loop of Henle

C. Collecting tubule

D. Urinary bladder

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Urea is formed from ammonia and carbon dioxide in

A. liver cells

B. every living cell

C. kidney and muscles

D. liver and kidney

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The liquid which collects in the cavity of Bowman's capsule is

A. concentrated urine

B. blood plasma minus blood proteins

C. a solution containing excretory wastes

D. a solution containing wastes

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4

Birds and reptiles excrete their nitrogenous waste in the form of

A. uric acid and urea

B. urea

C. urea and uric acid respectively

D. uric acid

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In which animal, the excretory substance is ammonia?

A. Camel

B. Cartilaginous fish

C. Whale

D. Fresh water fish

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The normal glomerular filtration rate in man is

A. 125 ml/minute

B. 250 ml/minute

C. 500 ml /minute

D. 1200 ml/minute

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The normal renal blood flow amounts to

A. 125 litres per day

B. 500 litres per day

C. 1000 litres per day

D. 1700 litres per day

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4

Columns of Bertini in the kidneys of mammals are formed as extension of

A. medulla into pelvis

B. medulla into cortex

C. cortex into medulla

D. pelvis into ureter

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4

Ammonia is the chief nitrogenous excretory material in

A. reptiles

B. turtles

C. tadpoles

D. amphibians

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4

The conversion of ammonia into urea occur in

A. kidneys

B. lungs

C. liver

D. intestine

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A person consuming a large amount of fish and meat will excrete urine rich in

A. ammonia

B. urea

C. uric acid

D. creatinine

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The renal threshold for glucose in blood of man is

A. 80 mg/100 ml

B. 150 mg/100 ml

C. 200 mg/100 ml

D. 300mg/100 ml

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Urea is transported by

A. WBC

B. RBC

C. Blood

D. Plasma

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4

In rabbit, the urinary bladder opens into

A. uterus

B. urethra

C. vestibule

D. ureter

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The vessel carrying blood into the Bowman's capsule in kidney of frog is known as

A. aferent arteriole

B. efferent arteriole

C. renal portal vein

D. any of these

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The total volume of blood passing through the kidneys in one minute is about

A. 125 ml

B. 500 ml

C. 1200 ml

D. 250 ml