Structural Organisation in Animals Test

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Structural Organisation in Animals Test - 57

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Question 1
1 / -0

In Cockroach, the common duct of salivary reservoir opens at the base of ..

A
Pharynx

B
Maxilla

C
Mandible

D
Hypopharynx

Solution

A pair of salivary glands is placed on either side of the crop. Each gland has two glandular portions and a bag like a reservoir. From the glandular portions of the two sides, many ducts arise which unite to form a common duct. The common duct opens at the base of the hypopharynx.
So, the correct answer is 'Hypopharynx'.
Question 2
1 / -0

In T.S. Pheretima, the correct sequence of body wall layers from outer to inner side
(a) Circular muscles
(b) Parietal peritoneum
(c) Epidermis
(d) Cuticle
(e) Longitudinal muscles

A
c b e a d

B
d c e a b

C
d c a e b

D
d b a e c
Question 3
1 / -0

Thermoreceptor sensillae of cockroach are located on

A
Antennae, maxillary and labial palps

B
Tarsus of leg

C
Anal cerci and anal styles

D
Labrum, maxillae and labium

Solution

In cockroach sense organs are Sensillae and compound eyes. Thermoreceptor sensilla of cockroach arc located in the 1st, Ilnd, Illrd segment of the tarsus of legs.
So, the correct answer is 'Tarsus of leg'.
Question 4
1 / -0

The total number of podomeres in the leg of Cockroach is

A
5

B
6

C
7

D
8

Solution

The thorax in cockroach bears two types of appendages: walking legs and wings. There are three pairs of jointed legs, a pair in each thoracic segment. Each leg is formed of five podomeres. They are coxa, trochanter, femur, tibia and tarsus.
So, the correct answer is '5'.
Question 5
1 / -0

Which part of Cockroach leg is attached to thorax ventrally?

A
Trochanter

B
Claw

C
Femur

D
Coxa

Solution

The thorax in cockroach bears three pairs of walking legs, a pair in each thoracic segment. Each leg is formed of 5 podomeres. They are coxa, trochanter, femur, tibia and tarsus. Coxa is the basal stout portion of the leg, articulating with the ventral side of the thoracic segment. It is internally hollow and is filled with striated muscle fibres.
So, the correct answer is 'Coxa'.
Question 6
1 / -0

Which is not a sensory structure in Cockroach?

A
Antennae

B
Eyes

C
Anal cerci

D
Maxillary palps

E
Proventriculus

Solution

The antennae, eyes, anal cerci and maxillary palps are sensory structures located in various regions of the body in a cockroach. Whereas the extension of the alimentary canal is called crop and its opening is called gizzard/proventriculus. It plays role in digestion.
So, the correct answer is 'Proventriculus'.
Question 7
1 / -0

Removal of which ganglia results in loss of motor control in Pheretima ___________________.

A
Sub pharyngeal ganglia

B
Suboesophageal ganglia

C
Suprapharyngeal ganglia

D
Supra-oesophageal ganglia

Solution

An answer is an option (A) Sub pharyngeal ganglia.
Sensory and motor nerves are fused with plexuses. Plexus is a web of nerve cells connected together. These plexuses move ventrally through the alimentary canal.
Plexuses are connected with sub-pharyngeal ganglia, it means all motor control operated through sub pharyngeal ganglia.
If we remove this region then all sensory and motor control will be stopped.
Question 8
1 / -0

Which among these is not involved in excretion in cockroaches?

A
Malpighian tubules

B
Nephrocytes

C
Urecose glands

D
Maxillary palps

E
Fat body

Solution

Excretion in a cockroach is performed by fine hair like yellow coloured tubules called Malpighian tubules. In addition to these tubules, fat body, nephrocytes, cuticle and uricase glands also aid in excretion. Whereas the maxillary palps are sensory in function.
So, the correct answer is 'Maxillary palps'.
Question 9
1 / -0

In the circulatory system of Pheretima a, b, c and d represent ______________.

A
a lateral hearts, b Sub-neural vessel, c commissural vessel, d lateral oesophageal vessel

B
a lateral hearts, b lateral oesophageal vessel, c - Sub-neural vessel, d - commissural vessel

C
a lateral hearts, b commissural vessel, c - Sub-neural vessel, d - oesophageal vessel

D
a - commissural vessel, b lateral hearts, c - lateral oesophageal vessel, d - Sub-neural vessel

E
a - commissural vessel, b lateral hearts, c - lateral oesophageal vessel, d - lateral oesophageal vessel

Solution

In the above figure of the circulatory system of Pheretima or Earthworm,

A - Lateral hearts

B - Commissural vessel

C - Sub- neural vessel

D - Lateral oesophageal vessel

Thus the correct answer is C.
Question 10
1 / -0

Which of the following features is not present in Periplaneta americana __________________.

A
Metamerically segmented body

B
Schizocoelom as body cavity

C
Indeterminate and radial cleavage during embryonic development

D
Exoskeleton composed of N-acetylglucosamine

Solution

C. Indeterminate and radial cleavage during embryonic development
EXPLANATION: Periplaneta americana is the scientific name of cockroach. Cockroach has determinate cleavage during embryonic development. indeterminate and radial cleavage is the feature of deuterostomes.

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Re-Attempt Weekly Quiz Competition

Structural Organisation in Animals Test - 57

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Structural Organisation in Animals Test - 57

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SHARING IS CARING

Question 1

Pharynx

Maxilla

Mandible

Hypopharynx

Solution

Question 2

c b e a d

d c e a b

d c a e b

d b a e c

Question 3

Antennae, maxillary and labial palps

Tarsus of leg

Anal cerci and anal styles

Labrum, maxillae and labium

Solution

Question 4

5

6

7

8

Solution

Question 5

Trochanter

Claw

Femur

Coxa

Solution

Question 6

Antennae

Eyes

Anal cerci

Maxillary palps

Proventriculus

Solution

Question 7

Sub pharyngeal ganglia

Suboesophageal ganglia

Suprapharyngeal ganglia

Supra-oesophageal ganglia

Solution

Question 8

Malpighian tubules

Nephrocytes

Urecose glands

Maxillary palps

Fat body

Solution

Question 9

a lateral hearts, b Sub-neural vessel, c commissural vessel, d lateral oesophageal vessel

a lateral hearts, b lateral oesophageal vessel, c - Sub-neural vessel, d - commissural vessel

a lateral hearts, b commissural vessel, c - Sub-neural vessel, d - oesophageal vessel

a - commissural vessel, b lateral hearts, c - lateral oesophageal vessel, d - Sub-neural vessel

a - commissural vessel, b lateral hearts, c - lateral oesophageal vessel, d - lateral oesophageal vessel

Solution

Question 10

Metamerically segmented body

Schizocoelom as body cavity

Indeterminate and radial cleavage during embryonic development

Exoskeleton composed of N-acetylglucosamine

Solution

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