Body Fluids and Circulation Test

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Body Fluids and Circulation Test - 33

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Weekly Quiz Competition

Question 1
1 / -0

Pulmonary vein carries

A
Deoxygenated blood

B
Oxygenated blood

C
Mixed blood

D
None of the above

Solution

Correct Option: B
Explanation:
The pulmonary vein carries blood from the lungs to the left auricle of the heart.
The blood carried by it is oxygenated by the lungs and the heart, then, pumps the oxygenated blood to all the parts of the body.
Hence, the pulmonary vein carries oxygenated blood.
Question 2
1 / -0

Platelets are

A
Source of growth factors

B
Involved in hemostasis

C
Lead to blood clots

D
All of the above

Solution

Platelets are parts of the blood that help the blood clot. They are smaller than red or white blood cells. Platelets are a natural source of growth factors. They circulate in the blood of mammals and are involved in hemostasis, leading to the formation of blood clots. Platelets release thread-like fibers to form these clots.
Therefore, the correct answer is option D.
Question 3
1 / -0

The oxygenated blood is carried from lungs to left auricle by

A
Vena cava

B
Pulmonary vein

C
Pulmonary artery

D
Aorta

Solution

Pulmonary veins carry oxygenated blood from the lungs back to the left atrium of the heart. All other veins in the body carry deoxygenated blood from the rest of the body back to the heart. Two pulmonary veins emerge from the lungs and drain into the left atrium. Thus the correct answer is option B.
Question 4
1 / -0

The component of blood which prevents its coagulation in the blood vessels is

A
Haemoglobin

B
Plasma

C
Thrombin

D
Heparin

Solution

Heparin is considered as the natural anticoagulant of the body which prevents blood clotting in blood vessels. It prevents the formation of thrombin.
Hence, correct answer is option D.
Question 5
1 / -0

Red blood cells are ........ white blood cells in size.

A
Smaller than

B
Larger than

C
Equal to

D
None of the above

Solution

RBCs are the smallest cells in the body with a diameter of 7.5 µm while WBC have a diameter of 8-12 microns.
Thus, the correct answer is option A.
Question 6
1 / -0

Which of the following cells has a lifespan of 5-9 days?

A
WBC

B
Platelets

C
RBC

D
None of the above

Solution

The platelets are formed by fragmenting from cells found in bone marrow called as megakaryocytes, and similar to red blood cells, they do not have a nucleus. The average lifespan of a platelet is normally just 5 to 9 days.
Therefore, the correct answer is option B.
Question 7
1 / -0

Lymph is transported through the

A
Lymph nodes

B
Lymphocytes

C
Lymph nerves

D
Lymph vessels
Solution
- Lymph is the fluid that circulates throughout the lymphatic system.
- The lymph is formed when the interstitial fluid (the fluid which lies in the intercellular spaces of all body tissues) is collected through lymph capillaries.
- Lymph is transported through lymph vessels to lymph nodes before emptying ultimately into the right or the left subclavian vein, where it mixes back with blood.
Therefore, the correct answer is option D.
Question 8
1 / -0

Which of the following are circulating fluids of the body?

a) Blood b) Hormones c) Lymph

A
a, b

B
b, c

C
a, c

D
All of the above

Solution

All such functions that need transport are performed by the two circulating fluids the blood and the lymph. Beside transport, These fluids has some other functions also.
Question 9
1 / -0

Blood vessels entering the liver are known as

A
Hepatic artery

B
Hepatic vein

C
Renal artery

D
All of the above

Solution

The aorta is the largest artery, in which left ventricle pumps blood for distribution to the whole body. The aorta breaks into arteries and finally to a very fine structure known as arterioles. A blood vessels entering the liver is hepatic artery. So, the correct answer is option A.
Question 10
1 / -0

The diagram shows the action of amylase.
What is the function of the enzyme amylase?

A
Breaks down the substrate into amino acids.

B
Changes the product into the substrate.

C
Increases the rate of starch breaking down into glucose.

D
Increases the rate of starch breaking down into maltose.

Solution

Amylase is an enzyme which acts upon the substrate, i.e., starch molecule to give maltose.

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Re-Attempt Weekly Quiz Competition

Body Fluids and Circulation Test - 33

Result

Body Fluids and Circulation Test - 33

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SHARING IS CARING

Question 1

Deoxygenated blood

Oxygenated blood

Mixed blood

None of the above

Solution

Question 2

Source of growth factors

Involved in hemostasis

Lead to blood clots

All of the above

Solution

Question 3

Vena cava

Pulmonary vein

Pulmonary artery

Aorta

Solution

Question 4

Haemoglobin

Plasma

Thrombin

Heparin

Solution

Question 5

Smaller than

Larger than

Equal to

None of the above

Solution

Question 6

WBC

Platelets

RBC

None of the above

Solution

Question 7

Lymph nodes

Lymphocytes

Lymph nerves

Lymph vessels

Solution

Question 8

a, b

b, c

a, c

All of the above

Solution

Question 9

Hepatic artery

Hepatic vein

Renal artery

All of the above

Solution

Question 10

Breaks down the substrate into amino acids.

Changes the product into the substrate.

Increases the rate of starch breaking down into glucose.

Increases the rate of starch breaking down into maltose.

Solution

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