What is the type of stem cell that all blood cells derive from? hemocytoblast er
ID: 87434 • Letter: W
Question
What is the type of stem cell that all blood cells derive from? hemocytoblast erythroblast hemocyte megakaryocytes reticulocyte All of the following are false statements about Red blood cells except: their life span is approx 2 years. They perform mitosis. they contain nuclei. they contain hemoglobin. Which of the following is NOT a characteristic of red blood cells? Can perform diapedesis. Ability to carry oxygen and carbon dioxide. Biconcave disc shaped cell structure The major factor contributing to blood viscocity. Generates ATP by anaerobic mechanisms.Explanation / Answer
Q13. OPTION A IS CORRECT
Hematopoietic stem cells (HSCs) or also known as hemocytoblasts, which are derived from the mesoderm and are found in bone marrow.These give rise to all other cells of the blood through a process known as haematopoiesis
Q14: OPTION D IS CORRECT.
Red blood cells are anucleated cells (without nucleus) and other organelles and do not contain genetic material, so are not able to divide.Their life is about 100 to 120 days.They contain hemoglobin to transport oxygen.
Q15;All the options seem properties of the red blood cells though that option is not there.
Diapedesis refers to movement of red blood cells through wall capillaries into the various tissues.Red blood cells have adopted biconcave disc structure to enable their flow through the blood vessels.Hemoglobin present in the red blood cells carries both oxygen as well carbon dioxide.The volume fraction of the red blood cells known as hematocrit along with some other factors determine blood viscosity.Erythrocytes lack mitochondria so they derive ATP from glycolysis and lactic acid fermentation (which is an anaerobic process)
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