Structural Organisation in Animals Test

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Structural Organisation in Animals Test - 43

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Question 1
1 / -0

.......... pairs of legs are found in Insecta.

A
Two

B
Three

C
Four

D
Five

Solution

Insect body has three regions: Head, Thorax and Abdomen.
(i) Head bears a single pair of antennae, a pair of compound eyes and mouthparts adapted for various modes of feeding.
(ii) Thorax bears three pairs of legs and usually one or two pairs of wings. Because of 3 pairs of legs, the class Insect is also called Hexapoda.
So, the correct answer is "Three".
Question 2
1 / -0

Show the pathway of electric impulse.

A
$$Dendrite \rightarrow Cell\ body\rightarrow Axon\rightarrow$$ to its end

B
$$Cell\ body \rightarrow Dendrite\rightarrow Axon\rightarrow$$ to its end

C
$$Axon\rightarrow Cell\ body\rightarrow Dendrite\rightarrow$$ to its end

D
$$Dendrite\rightarrow Axon\rightarrow Cell\ body\rightarrow$$ to its end

Solution

The dendrites are the short, cytoplasmic extension which is present in the sensory organs and are responsible for the reception of the electric impulse. The dendrite passes the electric impulse to the cell body which passes the impulse to the axon. The axon is the long cytoplasmic extension of the neuron. There are telodendrons which are present at the tail of the axons. These regions can release neurotransmitters which can help in the transmission of the impulse through the synapse to the next neuron.
Thus, the correct answer is option A.
Question 3
1 / -0

Which of the following muscle types are not voluntary muscles?

A
Both striated and smooth

B
Both cardiac and striated

C
Both smooth and cardiac

D
Cardiac, striated and smooth

Solution

Smooth muscles are nonstriated muscles. The cells of this muscle are spindle-shaped and are uninucleated. Smooth muscles are involuntary muscles. They cannot be controlled by one's conscious will.
Cardiac muscle is the muscle found in the heart wall. It is an involuntary muscle that is responsible for the pumping action of the heart. The heart pumps and supplies the oxygenated blood to the different tissues in the body due to the action of the cardiac muscle. They cannot be controlled by one's conscious will.
Striated muscle or skeletal muscle is an involuntary muscle.
Thus, the correct answer is option C.
Question 4
1 / -0

Bone marrow is composed of _______________.

A
Areolar tissue and blood vessels

B
Adipose tissue and fibroblasts

C
Adipose tissue and blood

D
Adipose and areolar tissue
Question 5
1 / -0

Adipose tissues stores:

A
Protein

B
Carbohydrates

C
Fat

D
All the above
Solution
- Adipose tissues are loose connective tissue composed mostly of adipocytes.
- They are also known as fat-storing connective tissues. Its main role is to store energy in the form of fat.
So, the correct answer is option C.
Question 6
1 / -0

Striated muscles are ______________.

A
Cylindrical

B
Multinucleate

C
With large number of sarcomeres

D
All the above

Solution

Striated muscles have distinctive features of repeating functional units. These striated muscles are syncytial (i.e. one cell having multiple nuclei), multinucleate, and with a large number of sarcomeres which are the functional unit of a striated muscle. Hence the correct answer is D.
Question 7
1 / -0

Cells of simple squamous epithelium are _____________.

A
Columnar

B
Tall with elongated nuclei

C
Flat and plate-like

D
Cube-like

Solution

The simple squamous epithelium consists of a single layer of flat and plate-like cells which is permeable in nature and enables filtration and diffusion of small molecules. They form a part of delicate linings of blood vessels, alveoli, etc.
Hence, the correct answer is C.
Question 8
1 / -0

Units of nervous system are ______________.

A
Cytons

B
Axons

C
Neurons

D
Dendrites

Solution

The unit of the nervous system is neurons. These are the specialized cells that are responsible for transmitting information to other neurons, muscles, or glands.
Cyton is a part of the neuron containing the nucleus and cytoplasm. Axon is a long and slender projection of neuron. Dendron is the branched extension of a nerve cell. Hence the correct answer is C.
Question 9
1 / -0

Ligaments connects ______________.

A
Muscle to skin

B
Bone to bone

C
Muscle to muscle

D
Muscle to bone

Solution

correct answer (B) Bone to bone
Ligament is the fibrous connective tissue that connects bones to other bones.
It is strong and flexible.
Question 10
1 / -0

Which of the following cells contain fat droplets?

A
Macrophages

B
Plasma cells

C
Adipose cells

D
Leucocytes

Solution

Adipose cells are fat-storing cells. They constitute the adipose tissue which is chiefly a fat reserve for storage and insulation.
So, the correct answer is 'Adipose cells'.

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Re-Attempt Weekly Quiz Competition

Structural Organisation in Animals Test - 43

Result

Structural Organisation in Animals Test - 43

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SHARING IS CARING

Question 1

Two

Three

Four

Five

Solution

Question 2

$$Dendrite \rightarrow Cell\ body\rightarrow Axon\rightarrow$$ to its end

$$Cell\ body \rightarrow Dendrite\rightarrow Axon\rightarrow$$ to its end

$$Axon\rightarrow Cell\ body\rightarrow Dendrite\rightarrow$$ to its end

$$Dendrite\rightarrow Axon\rightarrow Cell\ body\rightarrow$$ to its end

Solution

Question 3

Both striated and smooth

Both cardiac and striated

Both smooth and cardiac

Cardiac, striated and smooth

Solution

Question 4

Areolar tissue and blood vessels

Adipose tissue and fibroblasts

Adipose tissue and blood

Adipose and areolar tissue

Question 5

Protein

Carbohydrates

Fat

All the above

Solution

Question 6

Cylindrical

Multinucleate

With large number of sarcomeres

All the above

Solution

Question 7

Columnar

Tall with elongated nuclei

Flat and plate-like

Cube-like

Solution

Question 8

Cytons

Axons

Neurons

Dendrites

Solution

Question 9

Muscle to skin

Bone to bone

Muscle to muscle

Muscle to bone

Solution

Question 10

Macrophages

Plasma cells

Adipose cells

Leucocytes

Solution

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