339633
The characteristic that is shared by urea, uric acid and ammonia is/are: A. They are nitrogenous wastes B. They all need very large amount of , water for excretion C. They are all equally toxic D. They are produced in the kidneys
1 A and D
2 A, C and D
3 A only
4 A and C
Explanation:
Ammonia, urea and uric acid are nitrogenous waste. Ammonia is produced by deamination of amino acid, urea is produced by ammonia and carbondioxide and uric acid is produced from nitrogenous bases.
KCET - 2009
BIOXI19: EXCRETORY PRODUCTS AND THEIR ELIMINATION
339634
Earthworms are
1 Ureotelic when plenty of water is available
2 Uricotelic when plenty of water is available
3 Uricotelic under conditions of water scarcity
4 Ammonotelic when plenty of water is available
Explanation:
Lumbricus (commonly seen earthworm) produces both ammonia and urea. But when plenty of water is available they are ammonotelic.
AIPMT - 2006
BIOXI19: EXCRETORY PRODUCTS AND THEIR ELIMINATION
339635
Which of the following structures help in the removal of nitrogenous waste as well as concerned with osmoregulation?
1 Kidney
2 Protonephridia and Nephridia
3 Malphighian tubules
4 All of them
Explanation:
Option (4) is correct as Protonephridia, nephridia, kidney and Malpighian tubules all are the structures which help in the removal of nitrogenous waste as well as are concerned with osmoregulation (i.e. regulation ionic and fluid volume). These structures are found in platyhelminths, annelids and insects, respectively.
BIOXI19: EXCRETORY PRODUCTS AND THEIR ELIMINATION
339636
The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of
1 Ammonia
2 Potassium urate
3 Urea
4 Calcium carbonate
Explanation:
\(\square\) Insects including cockroach excrete nitrogenous waste in the form of soluble potassium urate which is liberated into the haemolymph and taken up by the cells lining the Malpighian tubules. \(\square\) The tubules facilitate the absorption of urate by stirring up the blood. \(\square\) In the cells of the tubule the potassium urate reacts with water and carbon dioxide (from respiration) to form potassium hydrogen carbonate and uric acid.
339633
The characteristic that is shared by urea, uric acid and ammonia is/are: A. They are nitrogenous wastes B. They all need very large amount of , water for excretion C. They are all equally toxic D. They are produced in the kidneys
1 A and D
2 A, C and D
3 A only
4 A and C
Explanation:
Ammonia, urea and uric acid are nitrogenous waste. Ammonia is produced by deamination of amino acid, urea is produced by ammonia and carbondioxide and uric acid is produced from nitrogenous bases.
KCET - 2009
BIOXI19: EXCRETORY PRODUCTS AND THEIR ELIMINATION
339634
Earthworms are
1 Ureotelic when plenty of water is available
2 Uricotelic when plenty of water is available
3 Uricotelic under conditions of water scarcity
4 Ammonotelic when plenty of water is available
Explanation:
Lumbricus (commonly seen earthworm) produces both ammonia and urea. But when plenty of water is available they are ammonotelic.
AIPMT - 2006
BIOXI19: EXCRETORY PRODUCTS AND THEIR ELIMINATION
339635
Which of the following structures help in the removal of nitrogenous waste as well as concerned with osmoregulation?
1 Kidney
2 Protonephridia and Nephridia
3 Malphighian tubules
4 All of them
Explanation:
Option (4) is correct as Protonephridia, nephridia, kidney and Malpighian tubules all are the structures which help in the removal of nitrogenous waste as well as are concerned with osmoregulation (i.e. regulation ionic and fluid volume). These structures are found in platyhelminths, annelids and insects, respectively.
BIOXI19: EXCRETORY PRODUCTS AND THEIR ELIMINATION
339636
The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of
1 Ammonia
2 Potassium urate
3 Urea
4 Calcium carbonate
Explanation:
\(\square\) Insects including cockroach excrete nitrogenous waste in the form of soluble potassium urate which is liberated into the haemolymph and taken up by the cells lining the Malpighian tubules. \(\square\) The tubules facilitate the absorption of urate by stirring up the blood. \(\square\) In the cells of the tubule the potassium urate reacts with water and carbon dioxide (from respiration) to form potassium hydrogen carbonate and uric acid.
339633
The characteristic that is shared by urea, uric acid and ammonia is/are: A. They are nitrogenous wastes B. They all need very large amount of , water for excretion C. They are all equally toxic D. They are produced in the kidneys
1 A and D
2 A, C and D
3 A only
4 A and C
Explanation:
Ammonia, urea and uric acid are nitrogenous waste. Ammonia is produced by deamination of amino acid, urea is produced by ammonia and carbondioxide and uric acid is produced from nitrogenous bases.
KCET - 2009
BIOXI19: EXCRETORY PRODUCTS AND THEIR ELIMINATION
339634
Earthworms are
1 Ureotelic when plenty of water is available
2 Uricotelic when plenty of water is available
3 Uricotelic under conditions of water scarcity
4 Ammonotelic when plenty of water is available
Explanation:
Lumbricus (commonly seen earthworm) produces both ammonia and urea. But when plenty of water is available they are ammonotelic.
AIPMT - 2006
BIOXI19: EXCRETORY PRODUCTS AND THEIR ELIMINATION
339635
Which of the following structures help in the removal of nitrogenous waste as well as concerned with osmoregulation?
1 Kidney
2 Protonephridia and Nephridia
3 Malphighian tubules
4 All of them
Explanation:
Option (4) is correct as Protonephridia, nephridia, kidney and Malpighian tubules all are the structures which help in the removal of nitrogenous waste as well as are concerned with osmoregulation (i.e. regulation ionic and fluid volume). These structures are found in platyhelminths, annelids and insects, respectively.
BIOXI19: EXCRETORY PRODUCTS AND THEIR ELIMINATION
339636
The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of
1 Ammonia
2 Potassium urate
3 Urea
4 Calcium carbonate
Explanation:
\(\square\) Insects including cockroach excrete nitrogenous waste in the form of soluble potassium urate which is liberated into the haemolymph and taken up by the cells lining the Malpighian tubules. \(\square\) The tubules facilitate the absorption of urate by stirring up the blood. \(\square\) In the cells of the tubule the potassium urate reacts with water and carbon dioxide (from respiration) to form potassium hydrogen carbonate and uric acid.
339633
The characteristic that is shared by urea, uric acid and ammonia is/are: A. They are nitrogenous wastes B. They all need very large amount of , water for excretion C. They are all equally toxic D. They are produced in the kidneys
1 A and D
2 A, C and D
3 A only
4 A and C
Explanation:
Ammonia, urea and uric acid are nitrogenous waste. Ammonia is produced by deamination of amino acid, urea is produced by ammonia and carbondioxide and uric acid is produced from nitrogenous bases.
KCET - 2009
BIOXI19: EXCRETORY PRODUCTS AND THEIR ELIMINATION
339634
Earthworms are
1 Ureotelic when plenty of water is available
2 Uricotelic when plenty of water is available
3 Uricotelic under conditions of water scarcity
4 Ammonotelic when plenty of water is available
Explanation:
Lumbricus (commonly seen earthworm) produces both ammonia and urea. But when plenty of water is available they are ammonotelic.
AIPMT - 2006
BIOXI19: EXCRETORY PRODUCTS AND THEIR ELIMINATION
339635
Which of the following structures help in the removal of nitrogenous waste as well as concerned with osmoregulation?
1 Kidney
2 Protonephridia and Nephridia
3 Malphighian tubules
4 All of them
Explanation:
Option (4) is correct as Protonephridia, nephridia, kidney and Malpighian tubules all are the structures which help in the removal of nitrogenous waste as well as are concerned with osmoregulation (i.e. regulation ionic and fluid volume). These structures are found in platyhelminths, annelids and insects, respectively.
BIOXI19: EXCRETORY PRODUCTS AND THEIR ELIMINATION
339636
The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of
1 Ammonia
2 Potassium urate
3 Urea
4 Calcium carbonate
Explanation:
\(\square\) Insects including cockroach excrete nitrogenous waste in the form of soluble potassium urate which is liberated into the haemolymph and taken up by the cells lining the Malpighian tubules. \(\square\) The tubules facilitate the absorption of urate by stirring up the blood. \(\square\) In the cells of the tubule the potassium urate reacts with water and carbon dioxide (from respiration) to form potassium hydrogen carbonate and uric acid.
