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Red blood cells are called macrophages true or false?
FALSE macrophages are white blood cells that are a part of the immune response system.
True or false red blood cell are made in the plasma?
False. Red blood cells are made in the bone marrow, not in the plasma. Plasma is the liquid component of blood that carries cells, proteins, and other substances throughout the body.
Is it true or false that Eukaryotic cells do not have a nucleus?
Yes, it is possible for a Eukaryotic cell to have no nucleus. An example of a cell without a nucleus is the mammalian red blood cell. However, Eukaryotic cells without a nucleus, like red blood cells, are unable to replicate. This is why red blood cells need to be continuously produced in the bone marrow.
Is it true that splenomegaly means abnormal softening of the spleen?
It is false; splenomegaly is enlargement of the spleen.
Is blood an example of epithelial tissue?
No, blood is not an example of epithelial tissue. Epithelial tissue is composed of closely packed cells that line the surfaces and cavities of the body, while blood is a connective tissue composed of cells suspended in a liquid matrix called plasma.
True or false when erythrocytes are no longer useful they are destroyed by macrophages in the spleen liver and bone marrow?
True. When erythrocytes are no longer useful they are destroyed by macrophages in the spleen liver and bone marrow.
Red blood cells are called macrophages true or false?
FALSE macrophages are white blood cells that are a part of the immune response system.
True or False Iron is necessary for oxygen transport in red blood cells?
false
Is Oxygen transported primarily by blood plasma true or false?
False. Oxygen is primarily transported by red blood cells, specifically by hemoglobin molecules inside the red blood cells. Oxygen binds to hemoglobin in the lungs and is then transported to tissues throughout the body.
Red blood cells are called macrophages?
False. White.
True or false- The beta cells of the pancreatic islets secrete glucagon in response to low blood sugar levels?
False. Beta cells of the pancreatic islets secrete insulin in response to high blood sugar levels, not glucagon. Glucagon is secreted by alpha cells in the pancreatic islets in response to low blood sugar levels to raise blood sugar levels.
True or false red blood cell are made in the plasma?
False. Red blood cells are made in the bone marrow, not in the plasma. Plasma is the liquid component of blood that carries cells, proteins, and other substances throughout the body.
Is it true or false that Eukaryotic cells do not have a nucleus?
Yes, it is possible for a Eukaryotic cell to have no nucleus. An example of a cell without a nucleus is the mammalian red blood cell. However, Eukaryotic cells without a nucleus, like red blood cells, are unable to replicate. This is why red blood cells need to be continuously produced in the bone marrow.
What is the theory that all human cells contain a nucleus?
This theory is false. Red blood cells do not contain a nucleus.
Is it true that splenomegaly means abnormal softening of the spleen?
It is false; splenomegaly is enlargement of the spleen.
Is the following sentence true or false most white blood cells live for an average of 120 days?
False, red blood cells circulate for an average of 120 days before they are worn out from squeezing through narrow capillaries.
Aquaporins are believed to be present in red blood cells and kidney tubules but very few other cells in the body?
False
