Structural Organisation in Animals Test

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Structural Organisation in Animals Test - 73

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Weekly Quiz Competition

Question 1
1 / -0

Malpighian tubes are excretory organ in

A
earthworm

B
cockroach

C
Flat worm

D
none of these
Solution
Excretory organs are the organs that help in the process of removal of waste from the body, they vary depending upon the organism.
Earthworms have nephridia as an excretory organ, it is a coiled structure.
House fly comes under insects, they have Malpighian tubules or green cells for the process of excretion and osmoregulation.
Flatworms have special types of excretory organs called flame cells.
So, the correct option is 'Housefly'.
Question 2
1 / -0

In earthworm, pharyngeal nephridia are present as three paired tuffs in the segments.

A
$$3$$$$^{rd}$$, $$4$$$$^{th}$$ and $$5$$$$^{th}$$

B
$$4$$$$^{th}$$, $$5$$$$^{th}$$ and $$6$$$$^{th}$$

C
$$5$$$$^{th}$$, $$6$$$$^{th}$$ and $$7$$$$^{th}$$

D
$$6$$$$^{th}$$, $$7$$$$^{th}$$ and $$8$$$$^{th}$$
Solution
- Segmentally arranged excretory organs in earthworms are called nephridia. These are of three types: septal, integumentary, and pharyngeal.
- Septal nephridia are present behind the 15$$^{th}$$ segment.
- Integumentary nephridia are present from 3$$^{rd}$$ to last segments.
- Pharyngeal nephridia are paired tufts present in the 4$$^{th}$$, 5$$^{th}$$, and 6$$^{th}$$ segments.
So, the correct answer is B.
Question 3
1 / -0

Phallomeres or gonapophyses are chitinous structures which:

A
Are found only in male cockroaches

B
Are found only in female cockroaches

C
Form the external genitalia in male and female cockroaches

D
Form the egg shell are present in male cockroaches.

Solution

Gonapophysis is an organ or process that serves in copulation, oviposition, or stinging of an insect's anal region. In male cockroache gonapophysics, some asymmetric chitinous structures are discovered at the end of the abdomen surrounding the masculine gonopore. These are three phallomers or male gonapophyses that make up the outer genitalia.
Question 4
1 / -0

Identify the correct matching pair.

A
Microvilli - Fallopian tube

B
Cilia - Intestine

C
Stereocilia - Gall bladder

D
Ependymal epithelium - Inner lining of ventricles of brain

Solution

Ependymal epithelium cell line the ventricle of brain and the central canal of spinal cord. These are cilliated simple columnar shape and much like mucosal epithelium.
Question 5
1 / -0

Select the incorrect match between segment and its corresponding feature/structure in cockroach.

A
Head - Filiform antenna

B
Prothorax - Elytra

C
Metathorax - Wings for flight

D
Abdomen - Consists of ten segments
Question 6
1 / -0

Hepatic caeca in cockroach are useful in .....

A
Excreation

B
Secretion of enzymes

C
Respiration

D
Sensation

Solution

Hepatic caecae are found in cockroaches at the junction of foregut and midgut. They are 6-8 blind tubules which secrete enzymes of various kinds helping in digestion process.
So, the correct option is B.
Question 7
1 / -0

The haemolymph (blood) of cockroach ___________________.

A
Is composed of colourless plasma and numerous types of haemocytes

B
Is homologous to the blood of vertebrates

C
Both (a) and (b)

D
Lacks plasma

Solution

Cockroaches, like other insects have an open circulatory system and their blood is also known as haemolymph. It flows freely inside the body, touching all the internal organs and tissues. About $$90\%$$ of this blood is watery fluid and the remaining $$10\%$$ is made up of hemocytes. Therefore the haemolymph of cockroach is composed of colourless plasma and numerous types of haemocytes.
Question 8
1 / -0

Which of these is a function of epithelial tissue?

A
Covering and lining

B
Absorption

C
Secretion

D
All of the above

Solution

Epithelial tissues cover all body surfaces and protect the underlying organs or tissues of our body. Apart from protection, these tissues also play immense important role in absorption, secretion, excretion, filtration, diffusion and sensory reception.
So, the correct option is D.

Question 9

1 / -0

Match column-A(epithelial tissue) with column-B(their location):-

Column-A(epithelial tissue)	Column-B(their location)
(i) Simple squamous	(A) Trachea epithelium
(ii) Simple cuboidal	(B) Bile-duct epithelium
(iii) Simple columnar epithelium	(C) Bowman's Capsule
(iv) Pseudostratified	(D) Sweat gland epithelium
	(E) Buccal cavity

i-C, ii-D, iii-A, iv-B

i-C, ii-D, iii-B, iv-A

i-D, ii-C, iii-B, iv-A

i-D, ii-A, iii-B, iv-C

Solution

Trachea is lined by simple columnar epithelium. Bile duct is lined by stratified columnar (lobar ducts) as well as pseudostratified columnar epithelium ( interlobar ducts). Bowman's capsule and buccal cavity is lined by simple squamous epithelium while sweat glands are lined by simple cuboidal epithelium.

So, the correct option is A.

Question 10
1 / -0

How many of the following statements are true for cockroach?

A
The hind wings called tegmina are opaque, dark and leathery

B
The hind wings are transparent, membranous and are used in flight

C
$$2$$ pairs of thread like antenna arise from membranous sockets lying in front of the eyes

D
It exhibits paurometabolous metamorphosis

E
Respiratory system in cockroach depends on circulatory system

Solution

The hind wings are large, thin membranous and transparent. They are kept folded below the tegmina and are used for flying.

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Re-Attempt Weekly Quiz Competition

Structural Organisation in Animals Test - 73

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Structural Organisation in Animals Test - 73

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SHARING IS CARING

Question 1

earthworm

cockroach

Flat worm

none of these

Solution

Question 2

$$3$$$$^{rd}$$, $$4$$$$^{th}$$ and $$5$$$$^{th}$$

$$4$$$$^{th}$$, $$5$$$$^{th}$$ and $$6$$$$^{th}$$

$$5$$$$^{th}$$, $$6$$$$^{th}$$ and $$7$$$$^{th}$$

$$6$$$$^{th}$$, $$7$$$$^{th}$$ and $$8$$$$^{th}$$

Solution

Question 3

Are found only in male cockroaches

Are found only in female cockroaches

Form the external genitalia in male and female cockroaches

Form the egg shell are present in male cockroaches.

Solution

Question 4

Microvilli - Fallopian tube

Cilia - Intestine

Stereocilia - Gall bladder

Ependymal epithelium - Inner lining of ventricles of brain

Solution

Question 5

Head - Filiform antenna

Prothorax - Elytra

Metathorax - Wings for flight

Abdomen - Consists of ten segments

Question 6

Excreation

Secretion of enzymes

Respiration

Sensation

Solution

Question 7

Is composed of colourless plasma and numerous types of haemocytes

Is homologous to the blood of vertebrates

Both (a) and (b)

Lacks plasma

Solution

Question 8

Covering and lining

Absorption

Secretion

All of the above

Solution

Question 9

i-C, ii-D, iii-A, iv-B

i-C, ii-D, iii-B, iv-A

i-D, ii-C, iii-B, iv-A

i-D, ii-A, iii-B, iv-C

Solution

Question 10

The hind wings called tegmina are opaque, dark and leathery

The hind wings are transparent, membranous and are used in flight

$$2$$ pairs of thread like antenna arise from membranous sockets lying in front of the eyes

It exhibits paurometabolous metamorphosis

Respiratory system in cockroach depends on circulatory system

Solution

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