Structural Organisation in Animals Test

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Structural Organisation in Animals Test - 2

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Weekly Quiz Competition

Question 1
4 / -1

Read the statement with regard to frog. Which of the statement is/are correct and incorrect?
(i) The medulla oblongata passes out through foramen of Monro and continues into the spinal cord.
(ii) Vasa efferentia are 10-12 in number that arises from testes
(iii) Ovaries have no functional connection with kidneys
(iv) Frogs are uricotelic

A
Statements (i), (ii) and (iii) are correct while statement (iv) is incorrect

B
Statements (i), (ii) are correct while statement (iii) and (iv) is incorrect

C
Statements (ii), (iii) are correct while statement (i) and (iv) is incorrect

D
Statements (ii), (iii) and (iv) are correct while statement (i) is incorrect

Solution

In frog, the medulla oblongata passes out through foramen magnum and continues into spinal cord. Frogs are ureotelic.
Question 2
4 / -1

Identify the incorrect statement about frog.

A
Parathyroid and pineal body are present

B
There are ten cranial nerves only

C
Optic lobes are situated in the mid brain

D
The ventricle opens into the conus arteriosus

Solution

There are 10 pairs of cranial nerves that extend between the brain and various head regions and certain viscera. According to some workers, the 0 or terminal nerves are also present so that the actual number becomes 11 pairs.
Question 3
4 / -1

Which of the following statements is incorrect about the frog?
(i) Eyes are bulged out and covered by a nicitating membrane that protects them while in water.
(ii) On either side of the eyes a membranous tympanum (ear) receives sound signals.
(iii) The hind limbs end in four digits and they are larger and muscular than fore limbs that end in five digits.
(iv) Feet have webbed digits that help in swimming.
(v) Frogs exhibit sexual dimorphism

A
(i) and (v)

B
(iii) only

C
(ii) and (iii)

D
(iv) only

Solution

In frog, the hind limbs end in five digits and they are larger and muscular than fore limbs that end in four digits.
Question 4
4 / -1

Which of the following statements is correct about the respiration in frog?
(i) In frog, cutaneous and pulmonary respiration are found
(ii) A pair of elongated pink hollow lungs are found in thorax.
(iii) During aestivation and hibernation, gaseous exchange takes place through skin.

A
(i), (ii) and (iii)

B
(i) and (iii)

C
(ii) and (iii)

D
(i) and (ii)

Solution

In water, frogs respire through skin (cutaneous respiration). When on land, buccal cavity, skin and lungs, all act as respiratory organs. The respiration by lungs is known as pulmonary respiration. Lungs are a pair of elongated pink hollow structures found in the thorax. During aestivation and hibernation, gaseous, exchange takes place through skin.
Question 5
4 / -1

Following are given four statements (i) - (iv) related to frog. Read the statements carefully and select the option that identifies two correct statements.
(i) The ovaries are situated near kidney and there is no functional connection with kidneys.
(ii) Vasa efferentia enter the kidneys on their side and open into Bidder's canal.
(iii) There are twelve pairs of cranial nerves arising from the brain.
(iv) RBCs are enudeated and contain red coloured pigment namely haemoglobin.

A
(ii) and (iii)

B
(i) and (ii)

C
(iii) and (iv)

D
(i) and (iv)

Solution

In female frog, ovaries are irregular shaped, tubulated structures attached to the kidneys with the help a membrane called mesnverium The ovaries has no internal connection with kidneys. In male frog, there are present 10-12 fine tubes called vasa efferentia that connect the testes to the kidneys on each side. They open into the anterior part of Bidder's canal. In frog, there are ten percent of canial nerves. RBCs are nucleated and contained the coloured pigment namely himoglobin.
Question 6
4 / -1

Where is jelly deposited as a covering on the egg of frog?

A
In the oviduct

B
In the water during fertilisation

C
In the water after fertilisation

D
In the ovary

Solution

Jelly is deposited as as covering on the egg of the frog in the oviduct
Question 7
4 / -1

In a frog, if a hole is punched in the floor of its buccal cavity, then the frog will not die as:

A
buccal respiration does not stop

B
pulmonary respiration occurs

C
it can store oxygen for future use

D
respiration other than lungs will continue

Solution

In addition to buccopharyngeal respiration, frog also respires through lungs (pulmonary respiration). So, if a hole is punched in the floor of its buccal cavity the frog doesn't die.
Question 8
4 / -1

In frog, mesorchium is a thin fold of membrane extending between

A
two testes

B
liver and kidneys

C
two kidneys

D
kidneys and testes

Solution

In frog, there is present a cylindrical testis near each kidney, being suspended by mesorchium. There arise several then vasa efferntia from each testis that emerges through mesorchium and join the uriniferous tubules of the posterior part of the kidney to open into the Bidder's canal which in turn open into the ureter.
Question 9
4 / -1

The Bidder's canal is found in

A
tastes of frog

B
ovary of mammal

C
kidney of frog

D
kidney of mammal

Solution

Bidder's canal found in the kidney of frog and as urinogenital canal opening into ureter. It helps in excretion.
Question 10
4 / -1

Read the following statements (P- T) and select the option that correctly fills (i)- (v).
P. The male frog has a special organ on the throat called _____ (i).
Q. _____ (ii) membrane is a part of ear and serves to receive sound waves.
R. Dermis of the frog contains sac-like ______ (iii) glands
S. Tongue of frog is _____ (iv).
T. ______ (v) respiration takes place in lungs on land.

A
(i)- vocal sac; (ii)- Plasma; (iii)- mucous; (iv)- trilobed; (v)- Pulmonary

B
(i)- vocal sac; (ii)- Tympanic; (iii)- mucous; (iv)- bilobed; (v)- Pulmonary

C
(i)- vocal sac; (ii)- Pleural; (iii)- mucous; (iv)- unilobed; (v)- Pulmonary

D
(i)- vocal sac; (ii)- Incus; (iii)- sweat; (iv)- multilobed; (v)- Pulmonary

Solution

P. The male frog has a special organ on the throat called (i) 'vocal sac'.
Q. (ii) 'Tympanic' membrane is a part of the ear and serves to receive sound waves.
R. Dermis of the frog contains sac-like (iii) 'mucous' glands.
S. Tongue of frog is (iv) 'bilobed'
T. (v) 'Pulmonary' respiration takes place in lungs on land.
So, the correct answer is '(i)- vocal sac; (ii)- Tympanic; (iii)- mucous; (iv)- bilobed; (v)- Pulmonary'.

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Re-Attempt Weekly Quiz Competition

Structural Organisation in Animals Test - 2

Result

Structural Organisation in Animals Test - 2

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SHARING IS CARING

Question 1

Statements (i), (ii) and (iii) are correct while statement (iv) is incorrect

Statements (i), (ii) are correct while statement (iii) and (iv) is incorrect

Statements (ii), (iii) are correct while statement (i) and (iv) is incorrect

Statements (ii), (iii) and (iv) are correct while statement (i) is incorrect

Solution

Question 2

Parathyroid and pineal body are present

There are ten cranial nerves only

Optic lobes are situated in the mid brain

The ventricle opens into the conus arteriosus

Solution

Question 3

(i) and (v)

(iii) only

(ii) and (iii)

(iv) only

Solution

Question 4

(i), (ii) and (iii)

(i) and (iii)

(ii) and (iii)

(i) and (ii)

Solution

Question 5

(ii) and (iii)

(i) and (ii)

(iii) and (iv)

(i) and (iv)

Solution

Question 6

In the oviduct

In the water during fertilisation

In the water after fertilisation

In the ovary

Solution

Question 7

buccal respiration does not stop

pulmonary respiration occurs

it can store oxygen for future use

respiration other than lungs will continue

Solution

Question 8

two testes

liver and kidneys

two kidneys

kidneys and testes

Solution

Question 9

tastes of frog

ovary of mammal

kidney of frog

kidney of mammal

Solution

Question 10

(i)- vocal sac; (ii)- Plasma; (iii)- mucous; (iv)- trilobed; (v)- Pulmonary

(i)- vocal sac; (ii)- Tympanic; (iii)- mucous; (iv)- bilobed; (v)- Pulmonary

(i)- vocal sac; (ii)- Pleural; (iii)- mucous; (iv)- unilobed; (v)- Pulmonary

(i)- vocal sac; (ii)- Incus; (iii)- sweat; (iv)- multilobed; (v)- Pulmonary

Solution

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