Hemoglobin is the oxygen-carrying protein inside red blood cells. It gives red blood cells their red color. People with anemia do not have enough hemoglobin. The body needs certain vitamins, minerals, and nutrients to make enough red blood cells. Iron, vitamin B12, and folic acid are three of the most important ones.
Which organelle would you expect to find in abundance in a muscle cell? Mitochondria because ATP is needed for muscle contraction and the mitochondria is the site of ATP production (powerhouse). Edit
Every cell1 in your body contains organelles (structures that have specific functions). Just like organs in the body, each organelle2 contributes in its own way to helping the cell function well as a whole. The nucleusmitochondria and chloroplasts3 are all organelles.