Body Fluids and Circulation Test

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Body Fluids and Circulation Test - 44

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Weekly Quiz Competition

Question 1
1 / -0

Circulation of blood was discovered by

A
Darwin

B
Harvey

C
Aristotle

D
Lister.
Question 2
1 / -0

The genotype of B-group father of an O-group child is

A
$$I^O I^O$$

B
$$I^B I^B$$

C
$$I^A I^B$$

D
$$I^O I^B$$.
Question 3
1 / -0

Which of the following is true?

A
All veins carry deoxygenated blood.

B
All arteries carry oxygenated blood.

C
All veins except one carry oxygenated blood.

D
All arteries except one carry oxygenated blood.
Solution
- Arteries are the blood vessels coming out of the heart and supply blood to different parts of the body through aorta, arterioles, and meta-arterioles. All arteries carry oxygenated blood except the pulmonary artery which carries deoxygenated blood from the right ventricle of the heart to the lungs.
- Veins are the blood vessels that bring blood from different body parts back to the heart. All veins carry deoxygenated blood except the pulmonary vein which carries oxygenated blood from the lungs to the left atrium of the heart.
Hence, the correct answer is option D.
Question 4
1 / -0

Parents with blood groups O and AB cannot have AB child as

A
Gene for O is dominant over gene for B

B
Gene for O is dominant over gene for A

C
Genes for A and B are absent in one of the parents

D
Gene for A or B is absent in one of the parents.
Question 5
1 / -0

A vein that breaks up into capillaries is

A
Pelvic vein

B
Pulmonary vein

C
Renal vein

D
Hepatic portal vein.

Solution

A vein that breaks up into capillaries s hepatic portal vein. This vein carries blood from spleen and intestine to liver.
So, the correct option is D.
Question 6
1 / -0

Wall of blood capillary is formed of

A
Haemocytes

B
Parietal cells

C
Endothelial cells

D
Oxyntic cells.

Solution

Endothelial tissue or squamous epithelium forms a single layered wall of blood capillaries.
So, the correct option is C.
Question 7
1 / -0

Person with AB blood group can

A
Not receive universally

B
Universally donate

C
Universally receive

D
Receive only from O.
Solution
- Blood type AB is considered as a universal recipient because individuals of this blood group do not have the anti- A ( against A antigen) or anti- B (against B antigen) antibodies in the blood plasma only have A and B antigen on the surface of RBC.
- When blood from a person with another blood group supposes B blood group (or any other blood group) is injected to a AB blood group person there will be no immune response generated in the recipient since there are no antibodies.
- Hence a person with AB blood group can universally receive blood from any other blood group.
So the correct answer is option C.
Question 8
1 / -0

Blood capillaries are made of

A
Endothelium, connective tissue and muscle fibres

B
Endothelium and muscle fibres

C
Endothelium and connective tissue

D
Endothelium only.
Question 9
1 / -0

Which of these produces antibodies?

A
Macrophages

B
Plasma cells/Lymphocytes

C
Mast cells

D
Fibroblasts.

Solution

Antibodies are produced by the plasma cells. Plasma cells are the activated B lymphocytes which are formed when antigen binds with these lymphocytes. Hence the correct option is B.
Question 10
1 / -0

A fully mature human RBC has:

A
A nucleus

B
No nucleus

C
Mitochondria

D
Golgi bodies

Solution

Mature human RBCs are roughly circular and non-nucleated. Absence of nucleus imparts RBCs a biconcave disc-like shape. The concave surface of RBC increases the surface area of the cell and facilitates the diffusion of oxygen and carbon dioxide in and out of the cell. They also lose most of the cell organelles like mitochondria, Golgi bodies, ribosomes, etc. during maturation to become efficient oxygen carriers.
So, the correct answer is option B.

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Re-Attempt Weekly Quiz Competition

Body Fluids and Circulation Test - 44

Result

Body Fluids and Circulation Test - 44

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SHARING IS CARING

Question 1

Darwin

Harvey

Aristotle

Lister.

Question 2

$$I^O I^O$$

$$I^B I^B$$

$$I^A I^B$$

$$I^O I^B$$.

Question 3

All veins carry deoxygenated blood.

All arteries carry oxygenated blood.

All veins except one carry oxygenated blood.

All arteries except one carry oxygenated blood.

Solution

Question 4

Gene for O is dominant over gene for B

Gene for O is dominant over gene for A

Genes for A and B are absent in one of the parents

Gene for A or B is absent in one of the parents.

Question 5

Pelvic vein

Pulmonary vein

Renal vein

Hepatic portal vein.

Solution

Question 6

Haemocytes

Parietal cells

Endothelial cells

Oxyntic cells.

Solution

Question 7

Not receive universally

Universally donate

Universally receive

Receive only from O.

Solution

Question 8

Endothelium, connective tissue and muscle fibres

Endothelium and muscle fibres

Endothelium and connective tissue

Endothelium only.

Question 9

Macrophages

Plasma cells/Lymphocytes

Mast cells

Fibroblasts.

Solution

Question 10

A nucleus

No nucleus

Mitochondria

Golgi bodies

Solution

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