Tissues Test

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Tissues Test - 37

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Question 1
1 / -0

There is no DNA in :

A
Hair root

B
An enucleated ovum

C
Mature RBCs

D
A mature spermatozoan

Solution

Correct Option: C
Explanation:
Although RBCs are considered cells, they lack a nucleus, nuclear DNA, and most organelles, including the endoplasmic reticulum and mitochondria. RBCs therefore cannot divide or replicate like other labile cells of the body. They also lack the components to express genes and synthesize proteins. Hence, they are called, Akaryotes.
Question 2
1 / -0

Which of the following muscles act involuntarily?
(i) Smooth muscles
(ii) Cardiac muscles
(iii) Skeletal muslces

A
(i) and (ii)

B
(ii) and (iii)

C
(iii) and (i)

D
(i), (ii) and (iii)

Solution

Smooth muscles are located in visceral organs of the body. For example, urinary bladder, uterus, respiratory tract, etc. They are involuntary muscles. Similarly, Cardiac muscles are present in heart and help in rhythmic contraction and relaxation of auricles and ventricles. This movement of the heart cannot be controlled by the human body, thus are termed as involuntary movements.
In contrast, skeletal muscles are attached to bones which function in bodily movements like, walking, running, etc. These are voluntary movements since they are in direct control of an individual.
Hence the correct option is A.
Question 3
1 / -0

Fats are stored in human body as_________________.

A
Cuboidal epithelium

B
Adipose tissue

C
Bones

D
Cartilage

Solution

$$\textbf{Correct option:}$$ Option B
$$\textbf{Explanation for correct option:}$$
Option B
$$\bullet$$ Adipose tissue are fat-storing tissues found below the skin
and between internal organs.
$$\bullet$$ Their cells are filled with fat globules and act as an insulator.

$$\textbf{Explanation for incorrect options: }$$
Option A: Cuboidal epithelium cells are cube-shaped cells that provide mechanical support. They form the lining of kidney tubules and ducts of salivary glands.
Option C: Bone is connective tissue. It forms the framework that supports the body. It also anchors the muscles and supports the main organs of the body.
Option D: Cartilage is a connective tissue that has widely spaced cells. They have a solid matrix composed of proteins and sugars. They smoothen the bone surfaces at joints.

$$\textbf{Conclusion:}$$ Thus, fats are stored in the human body as adipose tissue.
Question 4
1 / -0

Pumping of the heart is regulated by________________.

A
Involuntary muscles

B
Voluntary muscles

C
Both voluntary and involuntary muscles

D
Sometimes voluntary or involuntary muscles

Solution

Pumping of the heart is not controlled by our will. It is a continuous process. It is controlled by cardiac muscle, i.e., an involuntary muscle. Cardiac muscle (heart muscle) is an involuntary striated muscle that is found in the walls of the heart.
so, the correct answer is option A.
Question 5
1 / -0

Movement of chocolate in the intestine is regulated by___________.

A
Involuntary muscles

B
Voluntary muscles

C
Both involuntary and involuntary muscles

D
Sometimes involuntary or voluntary muscles

Solution

Movement of muscles of the intestine is not controlled by our will. Movement of the intestine is called peristalsis. It is controlled by smooth muscles, i.e., involuntary muscles. So, the correct answer is option A.
Question 6
1 / -0

In desert plants, rate of water loss is reduced due to the presence of

A
Cuticle

B
Stomata

C
Lignin

D
Suberin

Solution

The epidermis of desert plants has a thick layer of cutin that is called cuticle. It is a waxy layer present on the leaves whose primary function is to reduce the water loss from the plant.
Hence the correct option is A.
Question 7
1 / -0

Jumping of a frog is regulated by_______________________.

A
Voluntary muscle

B
Involuntary muscle

C
Tendons

D
Both A and B

Solution

Jumping of a frog is a body movement. Body movement is carried out by muscles, which are attached to bones. Such muscles are called skeletal muscles. These muscles can be controlled by the organism's will. Hence, they are voluntary muscles. So, the correct answer is option A.
Question 8
1 / -0

Which structure protects the plant body against the invasion of parasites?

A
Waxy substances on epidermis called cuticle.

B
Glue like substances on epidermis

C
Lignin

D
None of the above

Solution

The cuticle covering the epidermis protects the plant body against the invasion of parasites and other harmful agents. Epithelial tissue is the protective covering of the body.
So, the correct answer is option A.
Question 9
1 / -0

Cork cells posses ...................... on their walls that makes them impermeable to gases and water.

A
Suberin

B
Lignin

C
Pectin

D
Hemicellulose
Solution
- Lignin and Pectin are impermeable to water but are absent in cork cells.
- Hemicellulose is permeable to water and gases.
- Cork cells are dead and have cell walls composed of a waxy substance "suberin", which is highly impermeable to gases and water. This substance prevents water loss from the stem.
So, the correct answer is option A.
Question 10
1 / -0

Lining of blood vessels is made up of

A
Squamous epithelium

B
Cuboidal epithelium

C
Columnar epithelium

D
None of the above

Solution

Correct Option: A
Explanation:
All blood vessels are lined by simple squamous epithelium called the endothelium.
A simple squamous epithelium may be a single layer of flat cells in touch with the basal lamina (one of the 2 layers of the basement membrane) of the epithelium. This sort of epithelium is usually permeable and present where small molecules get to pass easily through membranes via filtration or diffusion.

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Re-Attempt Weekly Quiz Competition

Tissues Test - 37

Result

Tissues Test - 37

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SHARING IS CARING

Question 1

Hair root

An enucleated ovum

Mature RBCs

A mature spermatozoan

Solution

Question 2

(i) and (ii)

(ii) and (iii)

(iii) and (i)

(i), (ii) and (iii)

Solution

Question 3

Cuboidal epithelium

Adipose tissue

Bones

Cartilage

Solution

Question 4

Involuntary muscles

Voluntary muscles

Both voluntary and involuntary muscles

Sometimes voluntary or involuntary muscles

Solution

Question 5

Involuntary muscles

Voluntary muscles

Both involuntary and involuntary muscles

Sometimes involuntary or voluntary muscles

Solution

Question 6

Cuticle

Stomata

Lignin

Suberin

Solution

Question 7

Voluntary muscle

Involuntary muscle

Tendons

Both A and B

Solution

Question 8

Waxy substances on epidermis called cuticle.

Glue like substances on epidermis

Lignin

None of the above

Solution

Question 9

Suberin

Lignin

Pectin

Hemicellulose

Solution

Question 10

Squamous epithelium

Cuboidal epithelium

Columnar epithelium

None of the above

Solution

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