Which of the following is not true?a)Blood is a connective tissueb)Blo...
Blood Cells and Nuclei
Blood is a fluid connective tissue that circulates throughout the body, delivering oxygen and nutrients to cells and removing waste products. It is composed of both cellular and non-cellular components. The cellular portion of blood includes red blood cells, white blood cells, and platelets. The non-cellular portion of blood includes plasma, a liquid that contains proteins, electrolytes, and other substances.
One of the statements in the question is that "none of the blood cells contain true nuclei." This statement is not true. Here's why:
- Red blood cells: Red blood cells, also known as erythrocytes, do not have nuclei. They are essentially sacs filled with hemoglobin, a protein that binds to oxygen and carbon dioxide. This lack of a nucleus allows red blood cells to be more flexible and fit through narrow blood vessels.
- White blood cells: White blood cells, also known as leukocytes, do have nuclei. They are part of the immune system and help to fight off infections and foreign invaders.
- Platelets: Platelets, also known as thrombocytes, do not have nuclei. They are involved in the clotting process, helping to form blood clots to stop bleeding.
Therefore, it is incorrect to say that none of the blood cells contain true nuclei. Only red blood cells lack nuclei.
Conclusion
In summary, the statement that none of the blood cells contain true nuclei is not true. While red blood cells do not have nuclei, white blood cells and platelets do have nuclei. It is important to have a clear understanding of the composition of blood and the functions of its various components in order to understand the many roles that blood plays in the body.
Which of the following is not true?a)Blood is a connective tissueb)Blo...
A
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