Important Blood Questions and Answers with Study Notes for Competitive Exams

Important Blood Questions and Answers: Hi Viewers welcome to ssc-ibps.com, in this post we are sharing the most valuable and important biology study notes on Human Blood and Groups. Present Days in General Knowledge from these blood minimum 1 mark multiple choice questions asked written test. Below this article having the complete detailed information of Human Blood Groups, Most Important MCQ’s on Blood, Previous year asked bits in competitive exams like as Railway (NTPC, ALP, Group D, Junior Engineer, Section Engineer), SSC (CGL, CHSL, MTS, Junior Engineer) Jobs.

Important Blood Questions and Answers For Exams

Blood Is a Fluid connective tissue.

It constitutes 6-8% of body weight.

The pH Value of Blood is 7.4.

The Percentage of water in Blood 85-90 %

Study of Blood is called Hematology

Blood consists of two parts

Plasma and Blood corpuscles

Plasma:

Plasma is the Liquid Part of Blood

The Color of Plasma is Light Yellow

In Blood Plasma Percentage is 60%.

Function of Plasma: Transpiration of digested food, Hormones, Excretory product etc from 
one part of the body to another part.  

Blood corpuscles:

The remaining 40 % of the part of the blood

In Human Body Three Types of Blood Cells

Red Blood Cells (RBC)

White Blood Cells (WBC)

Platelets

Let us explain each topic individually

Red Blood Cells (erythrocyte):

Other Name of RBC is called erythrocyte.

The life span of Red Blood cells is 20 to 120 days.

RBC is formed in Bone marrow.

The main function of RBC is to carry Oxygen from the lung to all cells of the body and bring 
back the carbon dioxide.

Human Body there is 4.5 to 5.5 million RBC cells having in one Cubic Millie Liter Blood.  

Previous year Asked Question on Red Blood Cells


What is the other name of RBC?
Answer: Erythrocyte

What disease is caused due the deficiency of RBC? (RRB ALP 2000)
Answer: Anemia

What is known as Graveyard of Red Blood Cells? (SSC CGL 2012)
Answer: Spleen

Abnormal increase in erythrocyte count is
Answer: Polycythemia

The instrument used to determine RBC count? (SSC CHSL 2010)
Answer: Hemocytometer

White Blood Cells (Leukocytes):

White Blood corpuscles are also called as Leukocytes.

The life time period is 12-14 days

All white blood cells are produced and derived from multipotent cells in the bone marrow 
known as hematopoietic stem cells.

WBC is the shape of Amoeba.

Nucleus is Present in the White Blood corpuscles.

The main function is protecting the body from the disease.

Important MCQ’s on white blood cells?

The abnormal decrease in WBC count caused by folic acid deficiency is called (Railway TC Exam 2004)
Answer: Leucopenia

The disease which causes abnormal and uncontrolled increase in WBC count?
Answer: Leukemia

What is the process of formation of WBC? (RRB Group D 1998)
Answer: Leucopenia

What is the largest WBC?
Answer: Monocyte

The cells those are responsible for the production of antibodies?
Answer:  White Blood Cells

What is the Ratio of RBC: WBC? (SSC CHSL 2004)
Answer: 600:1

Platelets:

Life span of platelets is 3-10 days.

It found in only in Human body

It dies in the spleen.

It formation takes place in bone marrow.

Platelets help the blood to clot.

Platelets also known as Thrombocytes

A normal platelet count ranges from 150,000 to 450,000 platelets per microliter of blood.

Classification of Blood Group’s:

Blood Group was discovered by Carol Landsteiner in the year 1900.

He is also known as the Father of Blood Groups.

The Highest Blood Group in World: B Group

The Lowest Blood Group in World: AB Group

Doesn’t Having Antigen in Blood Group: O Group

Doesn’t Having Antibody in Blood Group: AB Group

O Blood Group is Called Universal Donor

AB Blood Group is called Universal Receptor

Blood Group
To Donate
TO Accept (TO Receive)
A
A, AB
A, O
B
B, AB
B, O
AB
AB
A, B, AB, O
O
A, B, AB, O
ONLY O GROUP

Parent’s Blood Group
Possible to Child
Impossible to Child
A ==> A
A,O
B,AB
A ==> B
A,B,AB,O
---
A ==> O
A,O
B,AB
A ==> AB
A,B,AB
---------
AB ==> AB
A,B,AB
O
B ==> B
B,O
-------
B ==>AB
A,B,AB
O
B ==> O
O,B
A, AB
O ==> AB
A,B
O,AB
O ==> O
O
A,B,AB


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