Question

The following statement is true or false?

Statement: All immune cells begin as immature stem cells in the bone marrow. 

1. Statement is true
2. Statement is false
3. Statement not valid
4. None of the above

Answer 1

Correct Answer - Option 1 : Statement is true

The correct answer is 1 i.e. Statement is true.

Immune system: 

• The immune system stockpiles a huge arsenal of cells, not only lymphocytes but also cell-devouring phagocytes and their relatives.
• Some immune cells take on all comers, while others are trained on highly specific targets.
• To work effectively, most immune cells need the cooperation of their comrades.
• Sometimes immune cells communicate by direct physical contact, sometimes by releasing chemical messengers.
• The immune system stores just a few of each kind of the different cells needed to recognize millions of possible enemies.
• When an antigen appears, those few matching cells multiply into a full-scale army.
• After their job is done, they fade away, leaving sentries behind to watch for future attacks. 
• All immune cells begin as immature stem cells in the bone marrow.
• They respond to different cytokines and other signals to grow into specific immune cell types, such as T cells, B cells, or phagocytes.
• Because stem cells have not yet committed to a particular future, they are an interesting possibility for treating some immune system disorders.
• Researchers currently are investigating if a person’s own stem cells can be used to regenerate damaged immune responses in autoimmune diseases and immune deficiency diseases.