25 Questions
What is the Rh factor in human blood?
An inherited antigen
What can cause incompatibility in blood transfusion?
The Rh factor
When can an individual's Rh factor become an issue?
During pregnancy
What is the Rh factor responsible for in human blood?
Causing blood transfusion reactions
What can trigger an immune response due to the Rh factor?
An incompatible blood transfusion
What is the characteristic of an individual with 'O' blood group?
They have both A and B antibodies in their serum.
In an individual with 'O' blood group, which of the following is true?
The absence of A antigen leads to the presence of B antibody.
What is the relationship between the presence of antigens and antibodies in the 'O' blood group?
The absence of antigens leads to the presence of antibodies.
In an individual with 'O' blood group, which of the following is not present?
Both A and B antigens
What is the characteristic of the serum of an individual with 'O' blood group?
It contains both A and B antibodies.
What type of molecule can be an antigen in a blood group system?
Carbohydrate
Which of the following is a type of antigen that combines a carbohydrate and a protein?
Glycoprotein
What is the term for a molecule that consists of a carbohydrate attached to a lipid?
Glycolipid
Which of the following is not a type of antigen that can be found in a blood group system?
Nucleic acid
What is the common characteristic shared by antigens in a blood group system?
They can be molecules of various types
What is the fundamental basis of determining ABO blood groups?
Immunological reaction between antigen and antibody
What is the role of antigen in ABO blood group determination?
To react with antibody to determine blood group
What is the outcome of the immunological reaction between antigen and antibody in ABO blood group determination?
Agglutination of red blood cells
What is the significance of the immunological reaction in ABO blood group determination?
To determine the compatibility of blood for transfusion
What is the underlying principle of ABO blood group determination?
The specificity of antigen-antibody interactions
What is the primary criterion for determining an individual's blood group?
The presence of antigens on the surface of red blood cells
Which of the following blood antigens is NOT typically considered crucial in determining blood type?
Antigen H
What is the primary reason why the A, B, and Rh antigens are more important than other blood antigens?
They have a greater impact on blood transfusion compatibility
Which of the following statements is true about the A, B, and Rh antigens?
They are only present on the surface of red blood cells in certain individuals
What is the significance of the A, B, and Rh antigens in blood transfusion?
They determine the compatibility of blood types between donors and recipients
Study Notes
Blood Antigens
- Blood antigens can be proteins, carbohydrates, glycoproteins, or glycolipids, depending on the blood group system.
- Multiple blood antigens have been identified, but A, B, and Rh are the most crucial in determining blood group or type.
ABO Blood Group Determination
- ABO blood group determination depends on the immunological reaction between antigen and antibody.
O Blood Group
- If both antigens A and B are absent, the blood group is referred to as the 'O' group.
- In the 'O' group, both antibodies A and B are present in the serum.
Rhesus (RH) Factor
- The Rh factor is an inherited antigen in human blood.
- The Rh factor can stimulate an immune response during pregnancy or as a result of an incompatible blood transfusion.
This quiz covers the basics of blood antigens, ABO blood group determination, and the O blood group. Learn about the different types of blood antigens and their importance in determining blood group or type.
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