Tissues Test

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Tissues Test - 65

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Weekly Quiz Competition

Question 1
1 / -0

The functions of bone includes:
l. Formation of blood cells
ll. Protection of vital organs
lll. Framework for movement

A
l only

B
ll only

C
lll only

D
l and ll only

E
l,ll and lll

Solution

Bone is the specialized supporting connective tissues. It gives shape and size to the external and internal structure of the body which helps in movement as well as protects the delicate organs. All the types of blood cells are produced by the bone marrow hematopoietic stem cell that is seen within the bone.
Hence the correct option is E.
Question 2
1 / -0

Which of the following is an example of circadian rhythm?

A
Simple reflex

B
Complex reflex

C
Fixed action patterns

D
Behavioral cycles

E
Environmental rhythms

Solution

A biological process displaying an entrainable endogenous oscillation of approximately 24 hours is termed as a circadian rhythm. It is basically an internal clock oscillating at 24 hours. Behavioral cycles tend to repeat themselves after almost 24 hours, hence, they are an example of circadian rhythms.
So, the correct answer is 'Behavioral cycles'.
Question 3
1 / -0

Which of the following is true for RBCs?

A
They have no nucleus.

B
They are replaced in the liver.

C
They are outnumbered by white blood cells in the circulatory system.

D
They are made in the spleen.

E
They are the sites of rapid protein synthesis.

Solution

Red blood cells are initially produced in the bone marrow with a nucleus. This cuts off a segment of the cell containing the nucleus, which is then swallowed by a macrophage. Enucleation in humans most likely follows a very similar mechanism. The absence of a nucleus is an adaptation of the red blood cell for its role.
All the other statements are incorrect.

So, the correct option is 'They have no nucleus'.
Question 4
1 / -0

Which of the following tissues is made up of long contractile cells packed with actin and myosin microfilaments?

A
Epithelial tissue

B
Adipose tissue

C
Fibrous connective tissue

D
Nervous tissue

E
Muscle tissue

Solution

Muscles contract via the action of proteins actin and myosin. Both these proteins are present as microfilaments. Actin forms the thin filaments of muscle cells and myosin forms the thick filaments.
So, the correct answer is 'Muscle tissue'.
Question 5
1 / -0

Iron (Fe) atoms are present in the molecule of

A
Histone

B
Catalase

C
Chlorophyll

D
Haemoglobin

E
RNA polymerase

Solution

Hemoglobin is the protein molecule in red blood cells, also known as erythrocytes and helps to transport oxygen from heart to body tissues and carbon dioxide from body tissues to heart. Haemoglobin is made up of two alpha-globulin chains and two beta-globulin chains. Each chain is attached to an iron porphyrin compound called haem. The iron contained in hemoglobin is also responsible for the red color of blood.
Hence, the correct answer is option D.
Question 6
1 / -0

Which of the following statements is not true about blood?

A
Mature red blood cells are not nucleated.

B
Blood platelets are involved in the clotting process.

C
The adult spleen is a site of red blood cell development.

D
White blood cells are capable of phagocytosing foreign matter.

E
New red blood cells are constantly developing in the bone marrow.
Solution
- Mature red blood cells are not nucleated to increase their surface area for carrying oxygen.
- Blood platelets like thrombocytes are involved in the clotting process.
- Erythropoiesis is the process of production of red blood cells or erythrocytes. This process takes place in the red bone marrow of long bones. Before birth, this process is taken care of by the liver and the spleen but after birth, the process of erythropoiesis is extensively carried out in the bone marrow.
- White blood cells are phagocytes of foreign matter.
- New red blood cells are constantly developing in the bone marrow.
So, the correct answer is 'The adult spleen is a site of red blood cell development.
Question 7
1 / -0

Which of the following tissues has a single nucleus, tapers at both ends and shows involuntary movements?

A
Striated muscle

B
Smooth muscle

C
Cardiac muscle

D
Skeletal muscle

Solution

Smooth muscle fibers are nonstriated, spindle-shaped and have 1 nucleus per cell. Constriction of smooth muscle occurs involuntarily as it is under autonomic nervous control. Contractions of smooth muscle move food through the digestive tracts and push blood through the blood vessels. Thus the correct answer is option B.
Question 8
1 / -0

What type of muscles are found in stomach?

A
Cylindrical, Syncytial, Unbranched and Voluntary

B
Cylindrical, Striped, Nucleated and Voluntary

C
Cylindrical, Striped, Branched and Involuntary

D
Spindle shaped, Unbranched, Uninucleated and Involuntary

Solution

The muscles which are found in the stomach are the smooth muscles. These are spindle-shaped cells which are single and unbranched. The cells contain a single nucleus at the center and tapers in both the directions. These are involuntary muscles and function on their own.
Thus, the correct answer is option D.
Question 9
1 / -0

Which of the following is/are connective tissues?

A
Bone

B
Cartilage

C
Blood

D
All of the above

Solution

In the human body, the connective tissue is widely distributed. This tissue supports and connects the various body parts.
Bones are the major connective tissue that support the entire body and protect the organs. They are connected to each other by ligaments.
Cartilage is present at the ends of the long bones which prevent the friction between the bones during movements.
Blood connects the body tissues together. It brings the oxygen and nutrients and removes the waste products
So, the correct answer is 'All of the above'
Question 10
1 / -0

Which of these characteristics are true about the muscles of the stomach?

A
Cylindrical, syncytial, unbranched and voluntary

B
Cylindrical, striped, nucleated and voluntary

C
Cylindrical, striped, branched and involuntary

D
Spindle, unbranched, uninucleated and involuntary

Solution

Smooth muscle fibers are nonstriated, unbranched, spindle-shaped and have 1 nucleus per cell. Constriction of smooth muscle occurs involuntarily . Contractions of smooth muscle move food through the digestive tracts and push blood through the blood vessels.
Thus the correct answer is option D.

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Tissues Test - 65

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Tissues Test - 65

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SHARING IS CARING

Question 1

l only

ll only

lll only

l and ll only

l,ll and lll

Solution

Question 2

Simple reflex

Complex reflex

Fixed action patterns

Behavioral cycles

Environmental rhythms

Solution

Question 3

They have no nucleus.

They are replaced in the liver.

They are outnumbered by white blood cells in the circulatory system.

They are made in the spleen.

They are the sites of rapid protein synthesis.

Solution

Question 4

Epithelial tissue

Adipose tissue

Fibrous connective tissue

Nervous tissue

Muscle tissue

Solution

Question 5

Histone

Catalase

Chlorophyll

Haemoglobin

RNA polymerase

Solution

Question 6

Mature red blood cells are not nucleated.

Blood platelets are involved in the clotting process.

The adult spleen is a site of red blood cell development.

White blood cells are capable of phagocytosing foreign matter.

New red blood cells are constantly developing in the bone marrow.

Solution

Question 7

Striated muscle

Smooth muscle

Cardiac muscle

Skeletal muscle

Solution

Question 8

Cylindrical, Syncytial, Unbranched and Voluntary

Cylindrical, Striped, Nucleated and Voluntary

Cylindrical, Striped, Branched and Involuntary

Spindle shaped, Unbranched, Uninucleated and Involuntary

Solution

Question 9

Bone

Cartilage

Blood

All of the above

Solution

Question 10

Cylindrical, syncytial, unbranched and voluntary

Cylindrical, striped, nucleated and voluntary

Cylindrical, striped, branched and involuntary

Spindle, unbranched, uninucleated and involuntary

Solution

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