Body Fluids and Circulation Test

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Body Fluids and Circulation Test - 36

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Weekly Quiz Competition

Question 1
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 2
1 / -0

The correct order of the flow of blood through the heart, entering from vena cava is

A
Left atrium $$\rightarrow $$ left ventricle $$\rightarrow $$ right ventricle $$\rightarrow $$ right atrium

B
Left ventricle $$\rightarrow $$ left atrium $$\rightarrow $$ right atrium $$\rightarrow $$ right ventricle

C
Right atrium $$\rightarrow $$ right ventricle $$\rightarrow $$ left atrium $$\rightarrow $$ left ventricle

D
Right ventricle $$\rightarrow $$ right atrium $$\rightarrow $$ left atrium$$\rightarrow $$ left ventricle

E
Right ventricle $$\rightarrow $$ right atrium $$\rightarrow $$ left ventricle $$\rightarrow $$ left atrium

Solution

Humans have double circulation: one is systemic circulation and other is pulmonary circulation. In systemic circulation, oxygenated blood moves from heart to all parts of the body. In pulmonary circulation, deoxygenated blood is pumped by heart to get oxygenated in lungs. All the deoxygenated blood from the body comes to the right atrium and it moves to the right ventricle from there and finally to the lungs carried by pulmonary trunk. From lungs, oxygenated blood enters left atrium to go to left ventricle to be carried by aorta to whole body. So, the correct answer is 'Right atrium$$\rightarrow$$ right ventricle $$\rightarrow$$ left atrium $$\rightarrow$$ left ventricle'
Question 3
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 4
1 / -0

Which of the following describes homeostasis?

A
An animal maintaining a home range.

B
A population maintaining a constant population size.

C
Females remaining in their parents territory.

D
Plants ceasing to grow at a maximum height.

E
Maintaining internal environment in a steady state

Solution

The definition of homeostasis is the ability or tendency to maintain internal stability in an organism to compensate for environmental changes. An example of homeostasis is the human body keeping an average temperature of 98.6 degrees Fahrenheit.
So, the correct option is E.
Question 5
1 / -0

Identify the correct pathway of blood circulation.

A
1 to 2 to 3 to 4 to 1

B
1 to 3 to 2 to 4 to 1

C
1 to 4 to 2 to 3 to 1

D
2 to 3 to 4 to 1 to 2

E
2 to 4 to 3 to 1 to 2

Solution

The double circulation separates the oxygenated and deoxygenated blood. The right-hand side chambers of the heart deal with the deoxygenated blood and they receive blood from the body parts. They pump it to the lungs, where the blood gets oxygenated and is received back by the left-hand side chambers, which are then forwarded to the rest of the body organs.
In the given figure, 1 represents the right-side chambers of the heart, 2 represents the left-side chambers of the heart. So, the correct sequence will be 1 to 3 (pulmonary circulation) to 2 to 4 (systemic circulation) to 1.
Hence, the correct answer is option B.
Question 6
1 / -0

Deoxygenated blood is carried by
I. Pulmonary veins
II. Anterior vena cava
III. Pulmonary arteries

A
I only

B
II only

C
III only

D
I and II

E
II and III

Solution

Superior vena cava also known as anterior vena cava carries deoxygenated blood from the upper half of the body to the heart's right atrium.
The pulmonary artery is the only artery in the human body which carries deoxygenated blood from the heart to the lungs so that lungs can purify the blood.
Pulmonary veins are the only vein in the human body which carries oxygenated blood from lungs back to the left atrium of the heart which is then passed to the whole body by aorta. Hence option E is correct.
Question 7
1 / -0

Which of the following statements is true about red blood cells?

A
Protect the body from diseases

B
Carry oxygen to every part of the body

C
Biconcave in shape and have no nucleus

D
Both B and C

Solution

Erythrocytes (RBCs) are circular, biconcave, non-nucleated cells. The cytoplasm of RBCs contains the respiratory pigment called haemoglobin which helps in the transport of oxygen. It does not protect us from any disease. White blood cells present in the blood help to protect us from the disease.
So, the correct answer is option D.
Question 8
1 / -0

Which of the following molecule enters into the lymph from intestine?

A
Fat molecules

B
Glycerols

C
Plasma protein

D
None of the above
Solution
Chyle is the liquid form of chyme that enters lymph vessels from the small intestine. It is rich in fats, these fats along with lymph often appear as milk. The fat molecules from the intestine will make their way into the lymph.
Glycerols also called as glycerine is a colorless, odorless substance. It is found as an intermediate in metabolic pathways.
Plasma protein is the proteins that make-up blood plasma. They help in maintaining osmotic pressure, clotting, and transport of certain lipids, enzymes and hormones.
So the correct option is "Fat molecules".
Question 9
1 / -0

Identify the correct order of blood flow through the heart, entering from the vena cava.

A
Left atrium $$\rightarrow$$ left ventricle $$\rightarrow$$ right ventricle $$\rightarrow$$ right atrium

B
Left ventricle $$\rightarrow$$ left atrium $$\rightarrow$$ right atrium $$\rightarrow$$ right ventricle

C
Right atrium $$\rightarrow$$ right ventricle $$\rightarrow$$ left atrium $$\rightarrow$$ left ventricle

D
Right ventricle $$\rightarrow$$ right atrium $$\rightarrow$$ left atrium $$\rightarrow$$ left ventricle

E
Right ventricle $$\rightarrow$$ right atrium $$\rightarrow$$ left ventricle $$\rightarrow$$ left atrium

Solution

Both vena cava passes the deoxygenated blood to the right atrium. Blood from right atrium enters right ventricle and pulmonary arteries carry deoxygenated blood from right ventricle to lungs for oxygenation. Two pulmonary veins come from each lung and pass O$$_2$$-rich blood to left atrium. Blood enters left ventricle from the left atrium. The left ventricle pumps blood into the aorta which in turn branches and delivers blood to the major body regions and organs. So, the correct sequence is C.
Question 10
1 / -0

Choose the correct path of blood from the heart.

A
Vena cava, right atrium, right ventricle, aorta, lungs

B
Lungs, pulmonary vein, right atrium, right ventricle, aorta

C
Vena cava, right atrium, right ventricle, lungs, pulmonary vein

D
Vena cava, left atrium, left ventricle, lungs, pulmonary artery

E
Left ventricle, lungs, pulmonary vein, pulmonary artery, right atrium

Solution

Superior and inferior vena cava carries deoxygenated blood into the heart. Inferior vena cava carries blood from the lower body and superior vena cava carries blood from the upper part of the body. Both vena cava then transfers all the blood to the right atrium of the heart which is then passed into the right ventricle of the heart through tricuspid valves. Blood from the heart is then transported into lungs via pulmonary artery where blood is purified (becomes oxygenated from deoxygenated) and again transports back to left atrium of the heart via pulmonary vein which is then transported back to the whole body with the help of aorta. So, the correct answer is 'Vena cava, right atrium, right ventricle, lungs, pulmonary vein'.

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Body Fluids and Circulation Test - 36

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Body Fluids and Circulation Test - 36

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Question 1

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 2

Left atrium $$\rightarrow $$ left ventricle $$\rightarrow $$ right ventricle $$\rightarrow $$ right atrium

Left ventricle $$\rightarrow $$ left atrium $$\rightarrow $$ right atrium $$\rightarrow $$ right ventricle

Right atrium $$\rightarrow $$ right ventricle $$\rightarrow $$ left atrium $$\rightarrow $$ left ventricle

Right ventricle $$\rightarrow $$ right atrium $$\rightarrow $$ left atrium$$\rightarrow $$ left ventricle

Right ventricle $$\rightarrow $$ right atrium $$\rightarrow $$ left ventricle $$\rightarrow $$ left atrium

Solution

Question 3

Histone

Catalase

Chlorophyll

Haemoglobin

RNA polymerase

Solution

Question 4

An animal maintaining a home range.

A population maintaining a constant population size.

Females remaining in their parents territory.

Plants ceasing to grow at a maximum height.

Maintaining internal environment in a steady state

Solution

Question 5

1 to 2 to 3 to 4 to 1

1 to 3 to 2 to 4 to 1

1 to 4 to 2 to 3 to 1

2 to 3 to 4 to 1 to 2

2 to 4 to 3 to 1 to 2

Solution

Question 6

I only

II only

III only

I and II

II and III

Solution

Question 7

Protect the body from diseases

Carry oxygen to every part of the body

Biconcave in shape and have no nucleus

Both B and C

Solution

Question 8

Fat molecules

Glycerols

Plasma protein

None of the above

Solution

Question 9

Left atrium $$\rightarrow$$ left ventricle $$\rightarrow$$ right ventricle $$\rightarrow$$ right atrium

Left ventricle $$\rightarrow$$ left atrium $$\rightarrow$$ right atrium $$\rightarrow$$ right ventricle

Right atrium $$\rightarrow$$ right ventricle $$\rightarrow$$ left atrium $$\rightarrow$$ left ventricle

Right ventricle $$\rightarrow$$ right atrium $$\rightarrow$$ left atrium $$\rightarrow$$ left ventricle

Right ventricle $$\rightarrow$$ right atrium $$\rightarrow$$ left ventricle $$\rightarrow$$ left atrium

Solution

Question 10

Vena cava, right atrium, right ventricle, aorta, lungs

Lungs, pulmonary vein, right atrium, right ventricle, aorta

Vena cava, right atrium, right ventricle, lungs, pulmonary vein

Vena cava, left atrium, left ventricle, lungs, pulmonary artery

Left ventricle, lungs, pulmonary vein, pulmonary artery, right atrium

Solution

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