Structural Organisation in Animals Test

Result

Structural Organisation in Animals Test - 72

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Weekly Quiz Competition

Question 1
1 / -0

Earthworm is _____________.

A
Ureotelic

B
Ammoneotelic

C
Uricotelic

D
Both (1) and (2)

Solution

Earthworms are both ureotelic and ammonotelic. An earthworm excretes the nitrogenous wastes in the form of urea, water, traces of ammonia and creatinine. Nephridia excrete these substances from the body of an earthworm. They are ammonotelic when sufficient water is available and ureotelic when water availability is reduced.
So, the correct option is 'Both (1) and (2)'.
Question 2
1 / -0

Select the incorrect statement of pheretima ___________________.

A
The body segments are metameres about 100-120 in number

B
Dorsal surface is of the body is marked by the presence of genital pores

C
Prostomium is an anterior lobe which covers the mouth

D
The first segment of the body is called buccal segment

Solution

The common Indian earthworm, Pheretima posthuma belongs to the class Oligochaeta of phylum Annelida. It is found in every part of the world.
Body is cylindrical, bilaterally symmetrical, with metameric segmentation. The number of the segment is about 100 to 120, and the length is about 150 mm.
The four segments peristomium of the buccal segment which is the mouth. The body wall is the more muscular consisting of cuticle, epidermis, muscular layers and ceramic epithelium.
In the body wall, the pose is concerned with reproduction. These are the male and female genital pores.

So, the correct option is 'Dorsal surface is of the body is marked by the presence of genital pores'
Question 3
1 / -0

Supra oesophagal blood vessel is located on

A
Above the oesophagus

B
Above the stomach

C
Both sides of oesophagus

D
Under the intestine

Solution

Supra- oesophagal blood vessel is the shortest longitudinal vessel extending from 9th to 13th segment situated above the stomach. It receives blood from the lateral oesophageal by two pairs of anterior loops that encircle the stomach in the 10th and 11th segments. It sends its collected blood by the latero-oesophageal hearts in segments 12th and 13th to the ventral vessel.
So, the correct option is 'Above the stomach'.
Question 4
1 / -0

Earthworm is:

A
Hermaphrodite

B
Monoecious

C
Dioecious

D
Both (a) and (b)

Solution

Every earthworm contains both male and female sex organs. hence, they are called hermaphrodite
So, the correct answer is 'Hermaphrodite'
Question 5
1 / -0

Which of the following statement is $$NOT$$ $$CORRECT$$ about the compound epithelium?
I. It consist of several layers
II. It covers the dry surface of the skin, the moist surface of buccal cavity, inner lining of ducts of salivary glands and pancreatic ducts
III. It provides protection against chemical and mechanical stresses
IV. Being multilayered it has a great role in secretion and absorption

A
Only III

B
Only IV

C
Only I and IV

D
Only II

Solution

Compound epithelium has a limited role in secretion and absorption. So, the correct option is "only IV".
Question 6
1 / -0

In a muscle,the functional units of contraction is the :

A
Sarcomere

B
A band

C
H band

D
Portion of myofbril between two succesive '[Z] ' lines

Solution

The functional unit of contraction of muscles is the sarcomere. It is the region bordered by 2 Z lines. It contains both thick and thin filaments which slide over each other during contraction and relaxation.
Hence the correct option is A.
Question 7
1 / -0

Which of the following statement is false?

A
Smooth muscles are found in urinary bladder,alimentary canal and genital tract

B
A striated muscle is syncytium (multinucleate)

C
The cytoplasm of striated muscle is called endoplasm

D
The plasma membrane and ER of striated muscles are called sarcolemma and sarcoplasmic reticulum respectively
Solution
Correct Option: C
Explanation:
- The cytoplasm of striated muscle is known as sarcoplasm.
- The endoplasm is the dense region in the cytoplasm that is mostly granulated.
Hence, the false statement is: The cytoplasm of striated muscle is called endoplasm.
Question 8
1 / -0

Match the following
Sr. No Column -I Sr.No Column -II
a. Earthworms i Network of tube
b. Aquatic arthropods ii Lungs
c. Molluscs iii Gills
d. Terrestrial organisms iv Moist cuticle
e. Insects

A
a-i;b-ii;c-iii;d-iv;e-iii

B
a-iv;b-iii;c-iii;d-ii;e-i

C
a-iv;b-ii;c-i;d-iii;e-iii

D
a-iv;b-ii;c-iii;d-i;e-iii
Question 9
1 / -0

The common Indian earthworms are:

A
Pheretima and Tigrina

B
Pheretima and Hirudo

C
Pheretima and Terrestris

D
Pheretima and Lumbricus
Solution
- A common species of Indian earthworm is Pheretima posthuma.
- Lumbricus terrestris is another Indian earthworm, commonly known as a nightcrawler.
- Rana tigrina is the common name of the Indian bullfrog.
- Hirudo is a genus of leeches.
So, the correct answer is option D.
Question 10
1 / -0

The anal styles in cockroaches are present on

A
Tenth tergite of female

B
Tenth tergite of male

C
Ninth sternite of male

D
Ninth sternite of female

Solution

In the 9th sternum of abdomen a pair of small, un-jointed anal styles and in the 10th tergum of abdomen a pair of long, palp-like jointed anal cerci is present.
So, the correct option is 'Ninth sternite of male'.

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Re-Attempt Weekly Quiz Competition

Sr. No	Column -I	Sr.No	Column -II
a.	Earthworms	i	Network of tube
b.	Aquatic arthropods	ii	Lungs
c.	Molluscs	iii	Gills
d.	Terrestrial organisms	iv	Moist cuticle
e.	Insects

Structural Organisation in Animals Test - 72

Result

Structural Organisation in Animals Test - 72

Score

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Rank

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SHARING IS CARING

Question 1

Ureotelic

Ammoneotelic

Uricotelic

Both (1) and (2)

Solution

Question 2

The body segments are metameres about 100-120 in number

Dorsal surface is of the body is marked by the presence of genital pores

Prostomium is an anterior lobe which covers the mouth

The first segment of the body is called buccal segment

Solution

Question 3

Above the oesophagus

Above the stomach

Both sides of oesophagus

Under the intestine

Solution

Question 4

Hermaphrodite

Monoecious

Dioecious

Both (a) and (b)

Solution

Question 5

Only III

Only IV

Only I and IV

Only II

Solution

Question 6

Sarcomere

A band

H band

Portion of myofbril between two succesive '[Z] ' lines

Solution

Question 7

Smooth muscles are found in urinary bladder,alimentary canal and genital tract

A striated muscle is syncytium (multinucleate)

The cytoplasm of striated muscle is called endoplasm

The plasma membrane and ER of striated muscles are called sarcolemma and sarcoplasmic reticulum respectively

Solution

Question 8

a-i;b-ii;c-iii;d-iv;e-iii

a-iv;b-iii;c-iii;d-ii;e-i

a-iv;b-ii;c-i;d-iii;e-iii

a-iv;b-ii;c-iii;d-i;e-iii

Question 9

Pheretima and Tigrina

Pheretima and Hirudo

Pheretima and Terrestris

Pheretima and Lumbricus

Solution

Question 10

Tenth tergite of female

Tenth tergite of male

Ninth sternite of male

Ninth sternite of female

Solution

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