Question # 1

The end products of haemoglobin breakdown and metabolites of various hormones is

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Glucagon

Bilirubin

Keratin

Serotonin

Number of ammonia molecules required to produce one molecule of urea is.

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1

2

3

4

In juxtamedullary nephrons additional capillaries extend down to form at.

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Vasa deferontia

Vasa efferetia

Vasa recta

Vasa hecta

The incidence of uric acid kidney stones is.

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10%

15%

20%

70%

The most concentrated external environment is termed as.

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Hypotonic

Hypertonic

Osmotic

Isotonic

Among vertebrates uric acid is the chief nitrogenous waste in birds and

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Fishes

amphibians

Reptiles

Mammals

Most land mammals respond to cold by raising their.

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skin

Furs

Bristles

Spines

About 500 ml water is needed to excrete 1g of ammonia

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Hydrogen

Oxygen

Nitrogen

Helium

Bats and humming bird are called

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Heterotherms

Ectotherms

Endotherms

poikilotherms

Nitrogen waste which is highly toxic and dissolves quickly in body fluids is.

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CO2

Urea

Ammonia

Uric Acid

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