Which two categories are used to classify lymphoma?
Choose 2 answers.

A. Preventing the absorption of sodium and potassium: This statement is incorrect because the respiratory system does not affect the absorption of sodium and potassium; it primarily influences the levels of carbon dioxide (CO2) in the blood.

B. Blocking the arterial walls from absorbing electrolytes: The respiratory system does not block electrolyte absorption through arterial walls. This is not a mechanism involved in acid-base balance.

C. Increasing ventilation to drop the H+ ion level: The respiratory system compensates for acidosis by increasing ventilation, which helps to expel more CO2 from the lungs, reducing the concentration of H+ ions and thus decreasing acidity.

D. Regulating the excretion or reabsorption of H+ and HCO3: This is the role of the renal system, not the respiratory system. The kidneys regulate acid-base balance by excreting or reabsorbing H+ and HCO3.

A. Iron is a critical component of hemoglobin, the molecule in red blood cells (RBCs) that carries oxygen. Without sufficient iron, the body cannot produce enough healthy RBCs, leading to anemia.

B. Fiber is important for digestive health but does not play a role in red blood cell synthesis.

C. Magnesium is involved in many biochemical processes but is not directly required for RBC synthesis.

D. Calcium is important for bone health and various cellular functions, but it is not directly involved in red blood cell production.

E. Folic acid (vitamin B9) is essential for DNA synthesis and cell division, both of which are crucial for the production of red blood cells in the bone marrow.

F. Potassium is vital for maintaining cellular function, especially in muscles and nerves, but it is not required for RBC synthesis.