Structural Organisation in Animals Test

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Structural Organisation in Animals Test - 64

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Weekly Quiz Competition

Question 1
1 / -0

Cockroach has ............. kind of mouth parts

A
Lapping and sponging

B
Chewing and biting type

C
Piercing and suking type

D
Chewing and sucking

Solution

The mouthparts of a cockroach are chewing and biting type. This enables them to feed on a variety of food items.

So, the correct answer is 'Chewing and biting type'.
Question 2
1 / -0

Cells of the nervous system that are specialized to provide support arid protection are known as

A
Schwann cells

B
Axons

C
Neurons

D
Neuroglia

Solution

Neurons feature many thin projecting fibres called axons, which penetrate deep into tissues. They are able to communicate with other cells by chemical or electrical means at synapses. Neuronal function is supported by neuroglia, specialized cells which provide nutrition, mechanical support, and protection.
So, the correct option is 'Neuroglia'.
Question 3
1 / -0

The pungent smell of cockroach is produced by

A
Phallic glands

B
Cervical glands

C
Stink glands

D
Salivary glands

Solution

Male cockroaches have glands called stink glands, that are present on the 5th and 6th abdominal segment of the insect. Secretions from the stink gland have a strong odour, that helps in keeping predators away. So, the correct option is 'Stink glands'.
Question 4
1 / -0

'Mummies' of Egypt still have their arteries preserved due to the presence of

A
Yellow elastic connective tissues fibres

B
White fibrous connective tissue fibres

C
Cartilage

D
Valves

Solution

Yellow elastic connective tissue fibres are present in the wall of blood vessels, lungs, bronchioles, cartilage of larynx and trachea, etc. These fibres have considerable strength and remarkable elasticity. 'Mummies' of Egypt still have their arteries intact due to the presence of these fibres.
So, the correct answer is option A.
Question 5
1 / -0

Bone is connected to muscles with the help of ______________.

A
Ligament

B
Cartilage

C
Tendon

D
None of these

Solution

Tendon is a type of fibrous connective tissue that connects bone to muscles and has the capability to withstand tension.
So, the correct answer is 'Tendon'.
Question 6
1 / -0

Which of the following statement is/are not correct regarding connective tissue?

(i) They are the most abundant and widely distributed in the body of complex animals.
(ii) They connect and support other tissues.
(iii) They include diverse tissues such as bones, cartilage, tendons, adipose, and other loose connective tissues.
(iv) They form the internal and external lining of many organs.
(v) Blood is an example of a fluid connective tissue.

A
(iv) only

B
(v) only

C
(i) and (ii)

D
(ii) and (v)

Solution

The internal and external lining of organs is formed by different types of epithelial tissue, based on the function of the organ. Example, alveoli- exchange of gases- squamous epithelium, skin-protection - keratinised epithelium and so on... . The function of different types of connective tissue is transport substances between various tissues and organs in the body (blood), bind tissue together (loose and dense) and to provide support (bone and cartilage), that i's they do not form linings of body organs.
All the other statements about connective tissue are true.
So, the correct answer is '(iv) only'
Question 7
1 / -0

Earthworms have no skeleton but during burrowing, the anterior end becomes turgid and acts as a hydraulic skeleton. It is due to

A
Gut peristalsis

B
Setae

C
Coelomic fluid

D
Blood
Solution
Correct Answer: C
Explanation:
Earthworms have a space or body cavity(true coelom), lined by two mesodermal layers-parietal and visceral peritoneum.
This body cavity contains milky and alkaline, coelomic fluid.
The coelomic fluid works as a hydrostatic skeleton which facilitates the locomotion of earthworms during burrowing.
Hence, the correct answer is Coelomic fluid.
Question 8
1 / -0

The cell junctions namely tight, adhering and gap junctions are found in ______________.

A
connective tissues

B
epithelial tissues

C
neutral tissues

D
muscular tissues

Solution

Cell junctions are proteins that connect the cytoplasmic content of adjacent cells, they form a barrier between two cells and also hold or adhere cell together or with the extracellular matrix. these are abundant in epithelial tissue.
So, the correct answer is 'epithelial tissues'
Question 9
1 / -0

Read the following statements and select the correct option:
Statement 1: Cardiac muscle of the heart is striated and has intercalated discs between its fibres (cells)
Statement 2: It provides for quick, powerful and rhythmic contractions of the heart.

A
Both statements 1 and 2 are correct

B
Statement 1 is correct but statement 2 is incorrect

C
Statement 1 is incorrect but statement 2 is correct

D
Both statements 1 and 2 are incorrect

Solution

Cardiac muscles are present in the heart. Cardiac muscle tissue fibres are striated and involuntary muscle fibres. The myofibrils have dark and light bands, thus they are striated but they are not under the control of the will of the animal, thus they are involuntary. They have intercalated discs at intervals. These discs permit the wave of muscle contractions to be transmitted from one cardiac fibre to another. This provides quick powerful and rhythmic contractions to the heart.
So the correct answer is 'Both statements 1 and 2 are correct'.
Question 10
1 / -0

Identify the wrong statement about frog.

A
Parathyroid and pineal body are present

B
There are ten cranial nerves only

C
Optic lobes are situated in the mid brain

D
The ventricle opens into the conus arteriosus

Solution

There are ten pairs of cranial nerves arising from the brain. The brain is enclosed in a bony structure called brain box. The brain is divided into fore-brain mid-brain and hind-brain. Forebrain includes olfactory lobes, paired cerebral hemispheres, and unpaired diencephalon. The midbrain is characterized by a pair of optic lobes. Hind-brain consists of cerebellum and medulla oblongata. The ventricle opens into a sac-like conus arteriosus on the ventral side of heart.
So the correct option is "Parathyroid and pineal body are present".

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Structural Organisation in Animals Test - 64

Result

Structural Organisation in Animals Test - 64

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SHARING IS CARING

Question 1

Lapping and sponging

Chewing and biting type

Piercing and suking type

Chewing and sucking

Solution

Question 2

Schwann cells

Axons

Neurons

Neuroglia

Solution

Question 3

Phallic glands

Cervical glands

Stink glands

Salivary glands

Solution

Question 4

Yellow elastic connective tissues fibres

White fibrous connective tissue fibres

Cartilage

Valves

Solution

Question 5

Ligament

Cartilage

Tendon

None of these

Solution

Question 6

(iv) only

(v) only

(i) and (ii)

(ii) and (v)

Solution

Question 7

Gut peristalsis

Setae

Coelomic fluid

Blood

Solution

Question 8

connective tissues

epithelial tissues

neutral tissues

muscular tissues

Solution

Question 9

Both statements 1 and 2 are correct

Statement 1 is correct but statement 2 is incorrect

Statement 1 is incorrect but statement 2 is correct

Both statements 1 and 2 are incorrect

Solution

Question 10

Parathyroid and pineal body are present

There are ten cranial nerves only

Optic lobes are situated in the mid brain

The ventricle opens into the conus arteriosus

Solution

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