Structural Organisation in Animals Test

Result

Structural Organisation in Animals Test - 88

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Weekly Quiz Competition

Question 1
1 / -0

Nephridiopores present over the body of earthworm belong to

A
Integumentary nephridia

B
Septal nephridia

C
Pharyngeal nephridia

D
Peptonephridia

Solution

The excretory organs occur as segmentally arranged coiled tubules called nephridia. Nephridia regulate the volume and composition of the body fluids. Integumentary nephridia attached to the lining of the body wall of segment 3 to the last that open on the body surface. Nephridiopores present over the body of earthworm belongs to Integumentary nephridia.
So the correct answer is "Integumentary nephridia".
Question 2
1 / -0

Rhythmical contraction is noticed in

A
Cardiac muscles

B
Striped muscles

C
Unstriped muscles

D
In all the muscles

Solution

Cardiac muscles are present in the wall of the heart. They are involuntary in nature. They show rhythmic contraction to regulate the heartbeat.
So, the correct answer is 'Cardiac muscles'.
Question 3
1 / -0

In earthworm, typhlosole is a component of

A
Male reproductive system

B
Female reproductive system

C
Stomach

D
Intestine

Solution

Typhlosole in earthworms is a dorsal flap of the intestine that runs along most of its length, effectively forming a tube within a tube and increasing the absorption area by that of its inner surface.
So, the correct answer is 'Intestine'.
Question 4
1 / -0

Haemoglobin and blood cells are formed in Earthworm from

A
Lateral hearts

B
Laterocesophageal hearts

C
Blood glands

D
Ventral blood vessel

Solution

Pheretima exhibits a closed type of blood vascular system, consisting of blood vessels, capillaries, and heart. Blood glands are present on the 4th, 5th and 6th segments. They produce cells and hemoglobin which is dissolved in blood plasma. Blood cells are phagocytic in nature.
So the correct answer is "Blood glands".
Question 5
1 / -0

Match the columns.
Column I Column II
a Squamous $$1$$ Intestinal glands
b Cuboidal $$2$$ Trachea
c Columnar $$3$$ Ovary
d Ciliated $$4$$ Blood vessels
e Pseudostratified $$5$$ Bronchioles

A
$$a-5, b-4, c-2, d-1, e-3$$

B
$$a-4, b-3, c-1, d-5, e-2$$

C
$$a-4, b-3, c-1, d-2, e-5$$

D
$$a-4, b-5, c-1, d-2, e-3$$

E
$$a-1, b-2, c-4, d-3, e-5$$

Solution

a) Squamous cells are thin and flat similar to the plate. Also, they form the lining of cavities such as the mouth, blood vessels, heart, and lungs. So, the option 'a' matches with option '4'.
b) Cuboidal cells are roughly square or cuboidal in shape. They are found in glands and in the lining of the kidney tubules and constitute the germinal epithelium, which produces the egg cells in the female ovary and the sperm cells in the male testes. So, option 'b' matches with option '3'.
c) Columnar epithelial cells are elongated and column-shaped. They form the lining of the stomach and the intestines. So, option 'c' matches with option '1'.
d) Ciliated epithelium consists of simple columnar cells but possesses fine hair-like cilia on their free surfaces. These cells are found in air passages like the nose, trachea, and in the uterus and Fallopian tubes of females. So, the option' matches with '2'.
e) Bronchioles carry air from the bronchi to the terminal bronchioles and are lined by ciliated pseudostratified columnar epithelium. So, option 'e' matches with option '5'.
Hence, the correct answer is option C.
Question 6
1 / -0

Number of chambers in body cavity of Cockroach is

A
One

B
Two

C
Three

D
Four

Solution

The cockroach has an open type of circulatory system as the blood, or haemolymph, flows freely within the body cavity or haemocoel. The blood vessel is poorly developed and open into spaces. Visceral organs located in the haemocoel are bathed in the blood. The three main parts associated with the blood circulatory system are the haemocoel, heart, and blood. The number of chambers in the body cavity are three.
So the correct answer is 'Three'.
Question 7
1 / -0

A cavity present in between the mouth parts of cockroach is

A
Buccal cavity

B
Preoral cavity

C
Buccopharyngeal cavity

D
Proventriculus

Solution

Hypopharynx is chitinous, grooved and a rod-like structure found hanging into the preoral cavity. It is also known as ligula or tongue. Hypopharynx divides the proximal part of the preoral cavity into a larger anterior cibarium and a posterior salivarium. The salivary duct opens into salivarium at the base of the hypopharynx.
So the correct answer is 'Preoral cavity'.
Question 8
1 / -0

In Cockroach the ingested food is stored in

A
Oesophagus

B
Crop

C
Gizzard

D
All the above

Solution

The three parts into which the alimentary canal is divided are the foregut, midgut, and hindgut. The mouth leads into a pharynx which leads into a narrow passage called the oesophagus. The oesophagus opens into a sac-like structure called the crop that stores food.
So, the correct answer is 'Crop'.
Question 9
1 / -0

7-8 finger like blind tubules open into anterior part of midgut of Cockroach. They are

A
Intestinal caeca

B
Malpighian tubules

C
Hepatic caeca

D
None of these

Solution

Gizzard helps in grinding the food particles. The entire foregut is lined by the cuticle. A ring of 7-8 blind tubules called hepatic caecae or gastric caecae is present at the junction of foregut and midgut, which secrete digestive juices.
So the correct answer is 'Hepatic caeca'.
Question 10
1 / -0

On contraction of alary muscles, the size of pericardial sinus

A
Increases

B
Decreases

C
Remains same

D
There is no relation between the two

Solution

The alary muscles are twelve pairs whose alternate contractions and relaxations cause the dorsal diaphragm ventricular to rise and fall and so results in the blood to flow from perivisceral sinus to pericardial sinus and finally into the heart as it beats. On contractions of alary muscles, the size of pericardial sinus increases.
So the correct answer is 'Increases'.

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Re-Attempt Weekly Quiz Competition

	Column I		Column II
a	Squamous	$$1$$	Intestinal glands
b	Cuboidal	$$2$$	Trachea
c	Columnar	$$3$$	Ovary
d	Ciliated	$$4$$	Blood vessels
e	Pseudostratified	$$5$$	Bronchioles

Structural Organisation in Animals Test - 88

Result

Structural Organisation in Animals Test - 88

Score

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Rank

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SHARING IS CARING

Question 1

Integumentary nephridia

Septal nephridia

Pharyngeal nephridia

Peptonephridia

Solution

Question 2

Cardiac muscles

Striped muscles

Unstriped muscles

In all the muscles

Solution

Question 3

Male reproductive system

Female reproductive system

Stomach

Intestine

Solution

Question 4

Lateral hearts

Laterocesophageal hearts

Blood glands

Ventral blood vessel

Solution

Question 5

$$a-5, b-4, c-2, d-1, e-3$$

$$a-4, b-3, c-1, d-5, e-2$$

$$a-4, b-3, c-1, d-2, e-5$$

$$a-4, b-5, c-1, d-2, e-3$$

$$a-1, b-2, c-4, d-3, e-5$$

Solution

Question 6

One

Two

Three

Four

Solution

Question 7

Buccal cavity

Preoral cavity

Buccopharyngeal cavity

Proventriculus

Solution

Question 8

Oesophagus

Crop

Gizzard

All the above

Solution

Question 9

Intestinal caeca

Malpighian tubules

Hepatic caeca

None of these

Solution

Question 10

Increases

Decreases

Remains same

There is no relation between the two

Solution

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