Match the items of column I with those of column II: Column I Column II a) Ammonotelism (i) Birds b) Bowman's capsule (ii) Water reabsorption c) Micturition (iii) Bony fish d) Uricotelism (iv) Urinary bladder e) ADH (v) Renal tubule

(a)- (iii) Ammonotelism is the process of excretion of ammonia as an excretory product. Ammonia is highly toxic, so the organism needs plenty of water to make it less toxic. That is why aquatic organisms like bony fishes, octopus excrete ammonia and are called as ammonotelic organism. (b)- (v) Bowman's capsule and renal tubule are the part of nephron of the kidney. (c)- (iv) Micturition is the action of urination where urine is released out from urinary bladder through the urethra. (d)- (i) Uricotelism is the process of excreting uric acid. It is a highly concentrated compound released by organisms who live in water deficit region and the example of these type of organisms are birds. (e)- (ii) ADH is a hormone secreted from posterior pituitary. It helps in reabsorption of water from DCT and CT (collecting tubule) of nephron. Column I Column II a) Ammonotelism (iii) Bony fish b) Bowman's capsule (v) Renal tubule c) Micturition iv) Urinary bladder d) Uricotelism (i) Birds e) ADH (ii) Water reabsorption

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Important Questions on Excretory Products and their Elimination

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of :

HARD

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

Terrestrial animals are generally either ureotelic or uricotelic, not ammonotelic, why?

MEDIUM

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

Distinguish between the Ureotelic animals and ammonotelic animals.

MEDIUM

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

Which of the following defines the net filtration pressure (NFP)?

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

Name the major excretory products. How are these products eliminated from the body?

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

Uric acid is the excretory waste of

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

Write a short note on ureotelism.

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

In man, the urea is mainly produced in

MEDIUM

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

Match the items of column I with those of column II:

Column I	Column II
a) Ammonotelism	(i) Birds
b) Bowman's capsule	(ii) Water reabsorption
c) Micturition	(iii) Bony fish
d) Uricotelism	(iv) Urinary bladder
e) ADH	(v) Renal tubule

MEDIUM

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

Consider the following water conservation mechanisms and select the correct options regarding Kangaroo rats.
A. Nasal heat exchange
B. Dependence on metabolic water
C. Highly hypertonic urine
D. Living more on a protein-rich diet

HARD

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

Which of the following can be termed as osmoconformers?

MEDIUM

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

Describe how the kidney helps in osmoregulation in man.

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

What is meant by osmoregulation?

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

The process of excretion is the