Excretory Products and their Elimination Test 45

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Excretory Products and their Elimination Test 45

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following pairs is wrong?

A
Uricotelic - Birds

B
Ureotelic - Insects

C
Ammonotelic - Tadpole

D
Ureotelic - Elephant
Solution
Correct Option: B
Explanation:
- Animals that eliminate uric acid in the style of waste are called uricotelic organisms. birds, snakes, lizards are a number of examples of uricotelic organisms.
- Animals that eliminate organic compounds (urea) in the form of waste are termed ureotelic animals. fishes, amphibians, mammals are few examples of ureotelic animals.
- Animals whose main nitrogenous excretory waste is ammonia are termed ammonotelic. cnidarians, poriferans, echinoderms, fishes, tadpoles are some of the examples. Hence, Ureotelic-insects is a wrongly matched pair.
Question 2
1 / -0

Which one of the following statements is incorrect?

A
Birds and land snails are uricotelic animals.

B
Mammals and frogs are ureotelic animals.

C
Aquatic amphibians and aquatic insects are ammonotelic animals.

D
Birds and reptiles are urotelic

Solution

In Uricotelic organisms, the end product of nitrogen metabolism is uric acid. include terrestrial arthropods (including insects), lizards, snakes, and birds.
So, the correct option is 'Birds and reptiles are urotelic'.
Question 3
1 / -0

Match the terms given in column /i with their physiological processes given in column II and choose the correct answer.
Column I Column II
A. Proximal convoluted tubule (i) Formation of concentrated urine
B. Distal convoluted tubule (ii) Filtration of blood
C. Henle's loop (iii) Reabsorption of $$70-80%$$ of eletrolytes
D. Counter current mechanism (iv) Ionic balance
E. Renal corpuscle (v) Maintenance of concentration gradient in medulla

A
$$A-(iii), B-(v), C-(iv), D-(ii), E-(i)$$

B
$$A-(iii), B-(iv), C-(i), D-(v), E-(ii)$$

C
$$A-(i), B-(iii), C-(ii), D-(v), E-(iv)$$

D
$$A-(iii), B-(i), C-(iv), D-(v), E-(ii)$$

Solution

(A) Proximal convoluted tubule - Reabsorption of 70 - 80% of electrolytes
(B) Distal convoluted tubule - Ionic balance
(C) Henle's loop - Formation of concentrated urine
(D) Counter current mechanism - Maintenance of concentration gradient in medulla
(E) Renal capsule - Filtration of blood
So, the correct answer is (b).
Question 4
1 / -0

Excretory products of mammals are useful to plants. Which of the following is not a part of such secretions?

A
Carbon dioxide

B
Mineral salts

C
Bile pigments

D
Urea

Solution

The major excretory products are carbon dioxide, excess water, and nitrogenous compounds like ammonia, urea, uric acid, etc. Carbon dioxide and water are produced in the process of tissue respiration. Nitrogenous compounds are formed from the breakdown of proteins and amino acids. So, the correct option is "B" (Mineral salt).
Question 5
1 / -0

Incorrect statement in the following

A
Glomerulus is a group of fine blood capillaries

B
Loop of Henle is a part of malpighian body

C
Jatropa is the source of bio-diesel

D
Symptoms of uremia is swelling of feet

Solution

Malpighian body is also called kidney corpuscle. It is present at the beginning of a nephron, The Glomerulus and Bowman's capsule together constitute the malpighian body. Hence Loop of Henle is a part of nephron but not the part of a Malpighian body.
So, the correct answer is 'Loop of Henle is a part of the malpighian body'.
Question 6
1 / -0

Study the following

(a) Proximal convoluted tube
(b) Descending limb of Henle's loop
(c) Distal convoluted tube
(d) Ascending limb of Henle's loop
(e) Collecting Tubule

Where does facultative reabsorption of water take place?

A
a, b

B
c, d, e

C
e

D
a, b and e

Solution

Obligatory water reabsorption: eighty-five percent of the water reabsorption occurs irrespective of the body water balance and is called obligatory (must occur) about 65% of the obligatory reabsorption occurs in proximal tubules and 20% of the obligatory reabsorption occurs in distal tubules. The remaining 15% of water may or may not be reabsorbed depending on the body's water balance. It is called facultative reabsorption (optional). The facultative reabsorption occurs from the collecting tubule as it courses through the renal medulla. It is under the control of the antidiuretic hormone (ADH) which controls the permeability of the collecting tubule to water.
So, the correct answer is 'Collecting tubule'.
Question 7
1 / -0

Organisms which excrete ammonia as main excretory product are

A
Ammonotelic

B
Ureotelic

C
Uricotelic

D
Guanotelic
Solution
The nitrogenous waste products may be excreted from the body of an organism in the form of ammonia, urea and uric acid. On the basis of type of nitrogenous wastes excreted, animals are categorised into following three types:
- Ammonotelic: These excrete waste products in the form of ammonia.
- Ureotelic: These excrete waste products in the form of urea.
- Uricotelic: These excrete waste products in the form of uric acid.
So, the correct answer is ''Ammonotelic''.
Question 8
1 / -0

Choose the correct statement from the following.

A
Right kidney slightly lower than the left one due to stomach

B
Left kidney slightly lower than the right one due to liver

C
Right kidney slightly lower than the left kidney due to liver

D
Right kidney slightly upper than the left kidney due to liver

Solution

The right kidney is slightly lower than the left kidney due to the presence of large liver on the right side of the body. The liver is broader on the right side and it tapers gradually on the left side. The kidneys lie behind the peritoneum that lines the abdominal cavity.
Thus, the correct answer is option C.
Question 9
1 / -0

Arrange the following in correct order based on increasing toxicity.

(a) Urea
(b) Uric acid
(c) Ammonia

A
a-b-c

B
b-a-c

C
c-a-b

D
c-b-a

Solution

Nitrogenous waste that is produced in the body needs to be excreted from the body as they are toxic to an organism. The waste is excreted in 3 forms, namely ammonia, uric acid, and urea. Ammonia is more water-soluble and most toxic. It requires less energy for excretion. Animals excreting nitrogenous waste in the form of ammonia are called as ammonotelic. Aquatic animals like protozoans, crustaceans, poriferans, fishes where water is not a constraint are ammonotelic. Urea requires comparatively more energy and is less toxic in nature. Animals excreting nitrogenous waste in the form of urea are called as ureotelic. Examples include cartilaginous fish, amphibians, mammals including humans. Uric acid is least soluble in water and is least toxic. However, it requires a large amount of energy. Examples include reptiles, birds.
Thus, the correct answer is 'b-a-c.'
Question 10
1 / -0

Excretory matter of the earthworm is mainly

A
Creatinine

B
Urea

C
Ammonia

D
Both B and C

Solution

The process of removal of metabolic waste products including nitrogenous material like ammonia, urea, uric acid, amino acid, etc. from the body is called excretion. Earthworm is ureotelic because its nitrogenous waste matter consists of 40% urea, 20% ammonia, 40% amino acid and another nitrogenous compound. As the earthworm excretes 40% urea and 20% ammonia the excretory matter of the earthworm is mainly urea and ammonia.
So, the correct answer is 'Both B and C'.

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Excretory Products and their Elimination Test 45

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Excretory Products and their Elimination Test 45

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Question 1

Uricotelic - Birds

Ureotelic - Insects

Ammonotelic - Tadpole

Ureotelic - Elephant

Solution

Question 2

Birds and land snails are uricotelic animals.

Mammals and frogs are ureotelic animals.

Aquatic amphibians and aquatic insects are ammonotelic animals.

Birds and reptiles are urotelic

Solution

Question 3

$$A-(iii), B-(v), C-(iv), D-(ii), E-(i)$$

$$A-(iii), B-(iv), C-(i), D-(v), E-(ii)$$

$$A-(i), B-(iii), C-(ii), D-(v), E-(iv)$$

$$A-(iii), B-(i), C-(iv), D-(v), E-(ii)$$

Solution

Question 4

Carbon dioxide

Mineral salts

Bile pigments

Urea

Solution

Question 5

Glomerulus is a group of fine blood capillaries

Loop of Henle is a part of malpighian body

Jatropa is the source of bio-diesel

Symptoms of uremia is swelling of feet

Solution

Question 6

a, b

c, d, e

e

a, b and e

Solution

Question 7

Ammonotelic

Ureotelic

Uricotelic

Guanotelic

Solution

Question 8

Right kidney slightly lower than the left one due to stomach

Left kidney slightly lower than the right one due to liver

Right kidney slightly lower than the left kidney due to liver

Right kidney slightly upper than the left kidney due to liver

Solution

Question 9

a-b-c

b-a-c

c-a-b

c-b-a

Solution

Question 10

Creatinine

Urea

Ammonia

Both B and C

Solution

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