In cell biology, the cytoplasm is the material within a living cell, excluding the cell nucleus. It comprises cytosol (the gel-like substance enclosed within the cell membrane) and the organelles – the cell's internal sub-structures. All of the contents of the cells of prokaryotic organisms (such as bacteria, which lack a cell nucleus) are contained within the cytoplasm. Within the cells of eukaryotic organisms the contents of the cell nucleus are separated from the cytoplasm, and are then called the nucleoplasm. The cytoplasm is about 80% water and usually colorless.[1]
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One major difference between these secondary lymphoid organs is the mechanism by which antigens or pathogens enter the organ.
Naive T cells can develop into effector and memory T cells, which remove the triggering antigen in peripheral tissues and produce protective immunity, with the help of secondary lymphoid tissues.
The spleen, which collects bloodborne antigens, the lymph nodes, which deal with antigens found in peripheral tissues, and the mucosa-associated, bronchial-associated, and gut-associated lymphoid tissues where antigens from epithelial surfaces are collected are examples of secondary lymphoid organs.
Therefore, One major difference between these secondary lymphoid organs is the mechanism by which antigens or pathogens enter the organ.
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Red bone marrow only differs from yellow bone marrow because of a difference in the amount of fat.
<h3>What is Bone marrow?</h3>
Bone marrow may be defined as an absorptive substance discovered in the middle of the bones. It synthesizes bone marrow stem cells and other substances which are responsible for producing blood cells.
The complete question is as follows:
- the amount of antibody
- the amount of cytokine
- the amount of antigen
- the amount of fat
Red marrow includes blood stem cells that can evolve into the different components of blood such as red blood cells, white blood cells, or platelets. While yellow marrow is constructed predominantly of fat.
Thus, it is well described above.
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