Class 7 Exam > Class 7 Questions > What is the role of white blood cells (WBC) i...
Start Learning for Free
What is the role of white blood cells (WBC) in the blood?
- a)Transport oxygen
- b)Fight against germs
- c)Form blood clots
- d)Make blood appear red
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
What is the role of white blood cells (WBC) in the blood?a)Transport o...
White blood cells are part of the immune system and play a crucial role in defending the body against infections. They actively engage in combating and eliminating germs that may enter the body.
Most Upvoted Answer
What is the role of white blood cells (WBC) in the blood?a)Transport o...
Role of White Blood Cells (WBCs)
White blood cells (WBCs), or leukocytes, are a crucial component of the immune system. Their primary role is to protect the body against infections and diseases.
Key Functions of WBCs
- Defense Against Pathogens:
WBCs identify and eliminate pathogens such as bacteria, viruses, fungi, and parasites. They recognize these foreign invaders and initiate an immune response.
- Types of WBCs:
There are several types of WBCs, each with specific functions:
- Neutrophils: The most abundant WBCs that act quickly to engulf and destroy pathogens.
- Lymphocytes: Include B cells and T cells, which play critical roles in adaptive immunity, recognizing and remembering specific pathogens.
- Monocytes: These cells transform into macrophages and help clear out dead cells and debris, as well as engulf pathogens.
- Eosinophils and Basophils: Involved in allergic reactions and combating parasites.
Immune Response Activation
- Response Coordination:
WBCs communicate with each other and with other immune system components to coordinate the body’s response to infections.
- Inflammation:
Upon detecting an infection, WBCs release chemicals that trigger inflammation, increasing blood flow to the affected area, bringing more immune cells to fight the infection.
Conclusion
In summary, the correct answer is option 'B' because white blood cells are vital for fighting against germs and protecting the body from various diseases. Their ability to detect, respond, and eliminate pathogens makes them essential for maintaining health and preventing infections.
White blood cells (WBCs), or leukocytes, are a crucial component of the immune system. Their primary role is to protect the body against infections and diseases.
Key Functions of WBCs
- Defense Against Pathogens:
WBCs identify and eliminate pathogens such as bacteria, viruses, fungi, and parasites. They recognize these foreign invaders and initiate an immune response.
- Types of WBCs:
There are several types of WBCs, each with specific functions:
- Neutrophils: The most abundant WBCs that act quickly to engulf and destroy pathogens.
- Lymphocytes: Include B cells and T cells, which play critical roles in adaptive immunity, recognizing and remembering specific pathogens.
- Monocytes: These cells transform into macrophages and help clear out dead cells and debris, as well as engulf pathogens.
- Eosinophils and Basophils: Involved in allergic reactions and combating parasites.
Immune Response Activation
- Response Coordination:
WBCs communicate with each other and with other immune system components to coordinate the body’s response to infections.
- Inflammation:
Upon detecting an infection, WBCs release chemicals that trigger inflammation, increasing blood flow to the affected area, bringing more immune cells to fight the infection.
Conclusion
In summary, the correct answer is option 'B' because white blood cells are vital for fighting against germs and protecting the body from various diseases. Their ability to detect, respond, and eliminate pathogens makes them essential for maintaining health and preventing infections.
|
Explore Courses for Class 7 exam
|
|
Similar Class 7 Doubts
Top Courses for Class 7View all
What is the role of white blood cells (WBC) in the blood?a)Transport oxygenb)Fight against germsc)Form blood clotsd)Make blood appear redCorrect answer is option 'B'. Can you explain this answer?
Question Description
What is the role of white blood cells (WBC) in the blood?a)Transport oxygenb)Fight against germsc)Form blood clotsd)Make blood appear redCorrect answer is option 'B'. Can you explain this answer? for Class 7 2025 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about What is the role of white blood cells (WBC) in the blood?a)Transport oxygenb)Fight against germsc)Form blood clotsd)Make blood appear redCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 7 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the role of white blood cells (WBC) in the blood?a)Transport oxygenb)Fight against germsc)Form blood clotsd)Make blood appear redCorrect answer is option 'B'. Can you explain this answer?.
What is the role of white blood cells (WBC) in the blood?a)Transport oxygenb)Fight against germsc)Form blood clotsd)Make blood appear redCorrect answer is option 'B'. Can you explain this answer? for Class 7 2025 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about What is the role of white blood cells (WBC) in the blood?a)Transport oxygenb)Fight against germsc)Form blood clotsd)Make blood appear redCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 7 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the role of white blood cells (WBC) in the blood?a)Transport oxygenb)Fight against germsc)Form blood clotsd)Make blood appear redCorrect answer is option 'B'. Can you explain this answer?.
Solutions for What is the role of white blood cells (WBC) in the blood?a)Transport oxygenb)Fight against germsc)Form blood clotsd)Make blood appear redCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 7.
Download more important topics, notes, lectures and mock test series for Class 7 Exam by signing up for free.
Here you can find the meaning of What is the role of white blood cells (WBC) in the blood?a)Transport oxygenb)Fight against germsc)Form blood clotsd)Make blood appear redCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
What is the role of white blood cells (WBC) in the blood?a)Transport oxygenb)Fight against germsc)Form blood clotsd)Make blood appear redCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for What is the role of white blood cells (WBC) in the blood?a)Transport oxygenb)Fight against germsc)Form blood clotsd)Make blood appear redCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of What is the role of white blood cells (WBC) in the blood?a)Transport oxygenb)Fight against germsc)Form blood clotsd)Make blood appear redCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice What is the role of white blood cells (WBC) in the blood?a)Transport oxygenb)Fight against germsc)Form blood clotsd)Make blood appear redCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 7 tests.
|
|
Explore Courses for Class 7 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup