Body Fluids and Circulation Test

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Body Fluids and Circulation Test - 65

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Weekly Quiz Competition

Question 1
1 / -0

Which among the following does not exhibit phagocytic activity?

A
Monocytes

B
Neutrophil

C
Basophil

D
Macrophage
Solution
Phagocytotic activity is the process of engulfing or ingestion of food or bacteria.
Monocytes - They are the largest type of leucocytes present in about 10-20% in blood. They are phagocytotic in nature and engulf bacteria.
Neutrophils - There are also many in number in leucocytes. They are phagocytotic in nature and thus engulf harmful bacteria and germs.
Basophils - They are present in the very least amount in the leucocytes. Their main function is the prevention of blood clotting and other allergic reactions.
Macrophages - They are formed from monocytes in the leucocytes. They are phagocytes that engulf and destroy all the bacteria.
So, the correct option is 'Basophil'.
Question 2
1 / -0

Which of the following cell/organism does not form pseudopodia during its movement/locomotion?

A
WBC

B
Sperm

C
Macrophage

D
Amoeba

Solution

Correct option: B.
Pseudopodia are temporary arm-like projections of the cytoplasm of a eukaryotic cell. WBC, macrophages and amoeba have pseudopodia. Sperm cells move due to changes in intercellular ion concentration and not by pseudopodia.

Question 3

1 / -0

Difference between pulmonary artery and pulmonary vein is that the pulmonary artery has _______________.

No endothelium

Valves

Thicker wall

Oxygenated blood

Solution

Thick wall as they both possess endothelium derived relasing factor.

Pulmonary Artery	Pulmonary vein
$$\rightarrow$$ one pair $$\rightarrow$$ Blood in pulmonary Artery is deoxygenated $$\rightarrow$$ Blood pressure is higher $$\rightarrow$$ Wall is thick & elastic	$$\rightarrow$$ two pair $$\rightarrow$$ Blood is oxygenated $$\rightarrow$$ is comparatively lower $$\rightarrow$$ comparatively thinner

Question 4
1 / -0

Rouleaux formation is related to which of the cell/tissue:

A
$$RBC$$

B
$$WBC$$

C
Platelets

D
Monocytes

Solution

The correct answer is A.
Rouleaux formation refers to the stacking of 4 or more red blood cells. It is a characteristic feature of RBCs.
Question 5
1 / -0

Ventricular diastole occurs due to a/an.

A
Organ system

B
Cell organelle

C
Tissue

D
Organ

Solution

Ventricular diastole occurs due to the contraction of the heart (an organ of the circulatory system). The muscles of the ventricles relax and the heart receives blood from the atria. So, the correct option is 'Organ'.
Question 6
1 / -0

Which of the following statement is true ?

A
Vessels are multicellular with narrow lumen

B
Tracheids are multicellular with narrow lumen

C
vessels are unicellular with narrow lumen

D
Tracheids are unicellular with wide lumen
Question 7
1 / -0

Which of the following statement is incorrect?

A
about $$97$$ percent of $$O_2$$ is transported by RBCs in blood

B
$$20-25$$ percent $$CO_2$$ is transported by RBCs

C
$$70$$ percent of $$CO_2$$ is carried as bicarbonates

D
$$7$$ percent of $$O_2$$ is carried in a dissolved state through plasma
Question 8
1 / -0

Given below is the ECG of a normal human which one of its . Components is correctly interpreted below?

A
QRS complex represent the depolarization of the ventricle

B
The end of the T-wave marks the end of ventricle systole.

C
P-wave represents the repolarisation of the atria

D
Before Q wave marks the begining of the ventricle systole
Solution
Solution:

Correct answer is option A.

Explanation for correct option:
- Cardiac cycle is heart’s blood pumping cycle. In 1 minute, heart completes 3 cardiac cycles and pumps around 5.6 litres of blood
- This electrical activity of cardiac cycle can be measured by a test called as ECG / EKG i.e. Electrocardiogram.
- The graph is divided into 5 phases:
1. P wave : SA node triggers depolarization of atria
2. PR interval : Delay of AV node to allow ventricle filling.
3. QRS complex: Ventricular depolarization and triggering of main pumping action
4. ST segment: Ventricular repolarization begins.
5. T wave : Ventricular repolarization.
Question 9
1 / -0

A red blood cell is located in the artery supplying to right leg, how many capillary beds must this cell pass through before it is returned to the left atria?

A
One

B
Two

C
Three

D
Four
Question 10
1 / -0

Antibody common to blood group $$O^-$$ and individual with blood group $$B^+$$ is /are

A
Anti-B

B
Anti-A

C
Both Anti-B and Anti-A

D
Anti-RH

Solution

The correct answer is B.
Anti-B antibody would attack blood cells that contain B antigen. Group B: The surface of the red blood cells contains B antigen, and the plasma has anti-A antibody. Anti-A antibody would attack blood cells that contain A antigen. So B+ has antibody anti-A.

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Re-Attempt Weekly Quiz Competition

Body Fluids and Circulation Test - 65

Result

Body Fluids and Circulation Test - 65

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SHARING IS CARING

Question 1

Monocytes

Neutrophil

Basophil

Macrophage

Solution

Question 2

WBC

Sperm

Macrophage

Amoeba

Solution

Question 3

No endothelium

Valves

Thicker wall

Oxygenated blood

Solution

Question 4

$$RBC$$

$$WBC$$

Platelets

Monocytes

Solution

Question 5

Organ system

Cell organelle

Tissue

Organ

Solution

Question 6

Vessels are multicellular with narrow lumen

Tracheids are multicellular with narrow lumen

vessels are unicellular with narrow lumen

Tracheids are unicellular with wide lumen

Question 7

about $$97$$ percent of $$O_2$$ is transported by RBCs in blood

$$20-25$$ percent $$CO_2$$ is transported by RBCs

$$70$$ percent of $$CO_2$$ is carried as bicarbonates

$$7$$ percent of $$O_2$$ is carried in a dissolved state through plasma

Question 8

QRS complex represent the depolarization of the ventricle

The end of the T-wave marks the end of ventricle systole.

P-wave represents the repolarisation of the atria

Before Q wave marks the begining of the ventricle systole

Solution

Question 9

One

Two

Three

Four

Question 10

Anti-B

Anti-A

Both Anti-B and Anti-A

Anti-RH

Solution

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