Structural Organisation in Animals Test

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Structural Organisation in Animals Test - 18

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Weekly Quiz Competition

Question 1
1 / -0

In cockroach, which of the following is the principal motor centre?

A
Supraesophageal ganglia

B
Suboesophageal ganglia

C
Metathoracic ganglia

D
Abdominal ganglia

Solution

Suboesophageal ganglion lies below the oesophagus and it controls the movement of mouthparts, legs and wings. Hence, it is the principal motor centre. It is formed by the fusion of three ganglia.
Therefore, the correct answer is option B.
Question 2
1 / -0

In earthworms setae are present in all segments except

A
First and the last segment

B
First and the clitellum

C
First segment

D
Clitellum and last segment

E
First, clitellum and last segment

Solution

Setae are the 'S' shaped stiff bristles present on the complete body of earthworm except for the first, last and clitellar segments. These setae play an important function in locomotion. So, the correct answer is option E.
Question 3
1 / -0

Which one of these processes are found in animal only?

A
Nervous System

B
Hormonal Control

C
Respiration

D
Diffusion
Solution
- The nervous system is found in the kingdom Animalia.
- Except for Porifera, Echinodermata and few worms, the nervous system is found in almost all animals consisting of a brain, a spinal cord, and some nerves.
- The nervous system is not found in plants and other organisms like microbes, etc.
- Hormones are also secreted by plants known as phytohormones.
- Respiration and diffusion take place in all living cells.
So, option A is the correct option.
Question 4
1 / -0

The glands present in the skin of frog are

A
Sweat and mucous

B
Sweat and mammary

C
Mucous and poisonous

D
Sweat and sebaceous

Solution

Skin is soft, moist and slimy consists of epidermis and dermis. Mucous glands and poison glands are present in the dermis and their ducts open at the surface.
Question 5
1 / -0

Venous system of frog differs from that of rabbit in presence
of

A
Hepatic portal system

B
Renal portal system

C
3 vena cavae

D
Hepatic vein

Solution

Renal portal system is well developed in fishes and amphibians (frog), it is reduced in reptiles and birds and is absent in mammals (rabbit).
Question 6
1 / -0

Animals possess nerve network or nervous system to respond to their environment. But the single called Amoeba does not possesses any nerve cell, so, how it come to know whether a particle it encounters is a grain or sand and not its dinner

A
By chemotaxis

B
By skin

C
By hormones

D
All of these

Solution

Although the Amoeba has no sense organs ,It responds to chemical stimuli .It make this determination by chemotaxis ,a kind of chemical sense .This is the same response mechanism that our whit blood use when they encounter and phyagocytize a pathogen .
Question 7
1 / -0

Match list I with list II and choose the correction option

List I (Organism                                         List II (Excretory structure)
(A) Cockroach                                              (1) Nephridia
(B) Clarias                                                     (2) Malpighian tubules
(C) Earthworm                                              (3) Kidneys
(D) Balanoglossus                                        (4) Flame cells
(E) Flatworm                                                (5) Proboscis gland

A
(A) - (1), (B) - (3), (C) - (2), (D) - (4) , (E) - (5)

B
(A) - (3), CB) - (1), (C) - (2), (D) - (5) , (E) - (4)

C
(A) - (2), (B) - (1), (C) - (3), (D) - (5) , (E) - (4)

D
(A) - (2), CB) - (1), (C) - (5), (D) - (3) , (E) - (4)

E
(A) - (2), (B) - (3), (C) - (1), (D) - (5) , (E) - (4)

Solution

E. (A) - (2), (B) - (3), (C) - (1), (D) - (5), (E) - (4)
EXPLANATION: The excretory organ of cockroach is malpighian tubules. This is found at the junction of the midgut and hindgut. The main function of malpighian tubules is to remove the metabolic waste from the haemolymph, the body fluid of cockroach. The excretory system of Clarias is kidney. The kidneys are situated in the abdominal cavity. Earthworms have excretory structures called nephridia. A pair of nephridia is present on each segment of the earthworm. The excretion takes place through the pores of nephridia is called nephridiopore. The excretory organ of Balanoglossus is proboscis gland. This gland lies in front of the central sinus. Flatworm use nephridium as their excretory organ. At the end of each nephridium there is a ciliated flame cells. When fluid passes through this organ, solutes are reabsorbed and again returned to the body fluid.
Question 8
1 / -0

Blood glands of Pheretima take part in

A
Formation of red blood corpuscles

B
Formation of phagocytes

C
Maintenance of blood volume

D
Maintenance of blood circulation

Solution

Blood glands are present in the 4-6 segments and are responsible for producing blood corpuscles and haemoglobin
Question 9
1 / -0

Which of the following is correctly stated as happens in the common cockroach?

A
The food is grinded by mandibles and gizzard

B
Malpighian tubules are excretory organ projecting out from the colon

C
Oxygen is transported by haemoglobin blood

D
Nitrogenous excretory product is urea

Solution

In cockroach, malpighian tubules project from the midgut, haemoglobin is not the respiratory pigment rather haemocyanin is the respiratory pigment which helps in exchange of gases and ammonia is the respiratory product of cockroach. Mandibles and gizzard are used for grinding of food. So, the correct answer is option A.
Question 10
1 / -0

Which type of coelom is found in frog ___________.

A
Enterocoel

B
Schizocoel

C
Pseudocoel

D
Haemocoel
Solution
- Enterocoelic coelom is found in animals from the phylum Echinodermata to Chordata.
- Frog is included in class Amphibia under sub phylum Vertebrata and phylum Chordata.
- Haemocoel is found in members of the phylum Arthropoda.
- Pseudocoel is present in phylum Aschelminthes while schizocoel from phylum Annelida to Mollusca.
So, the correct answer is option A.

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Structural Organisation in Animals Test - 18

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Structural Organisation in Animals Test - 18

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SHARING IS CARING

Question 1

Supraesophageal ganglia

Suboesophageal ganglia

Metathoracic ganglia

Abdominal ganglia

Solution

Question 2

First and the last segment

First and the clitellum

First segment

Clitellum and last segment

First, clitellum and last segment

Solution

Question 3

Nervous System

Hormonal Control

Respiration

Diffusion

Solution

Question 4

Sweat and mucous

Sweat and mammary

Mucous and poisonous

Sweat and sebaceous

Solution

Question 5

Hepatic portal system

Renal portal system

3 vena cavae

Hepatic vein

Solution

Question 6

By chemotaxis

By skin

By hormones

All of these

Solution

Question 7

(A) - (1), (B) - (3), (C) - (2), (D) - (4) , (E) - (5)

(A) - (3), CB) - (1), (C) - (2), (D) - (5) , (E) - (4)

(A) - (2), (B) - (1), (C) - (3), (D) - (5) , (E) - (4)

(A) - (2), CB) - (1), (C) - (5), (D) - (3) , (E) - (4)

(A) - (2), (B) - (3), (C) - (1), (D) - (5) , (E) - (4)

Solution

Question 8

Formation of red blood corpuscles

Formation of phagocytes

Maintenance of blood volume

Maintenance of blood circulation

Solution

Question 9

The food is grinded by mandibles and gizzard

Malpighian tubules are excretory organ projecting out from the colon

Oxygen is transported by haemoglobin blood

Nitrogenous excretory product is urea

Solution

Question 10

Enterocoel

Schizocoel

Pseudocoel

Haemocoel

Solution

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