Respiration is a series of reactions in which energy is released from glucose glucose: A simple sugar made by the body from food, which is used by cells to make energy in respiration. Aerobic respiration is the form of respiration which uses oxygen.It can be summarised by this equation:glucose + oxygen â carbon dioxide + water (+ energy). Energy is shown in brackets because it is not a substance.Notice that: 1  Glucose and oxygen are used up.erobic respiration is the form of respiration which uses oxygen. It can be summarised by this equation: glucose + oxygen â carbon dioxide + water (+ energy). Energy is shown in brackets because it is not a substance. Notice that: 1  Glucose and oxygen are used up.
Typically when we speak about smaller than normal red blood cells, we talk about their volume. Assuming you mean small volume red blood cells (called a low MCV), there are many conditions that can cause this. I recommend that you follow-up with your doctor. The most common is iron deficiency, which is diagnosed not only by looking at blood iron levels but also ferritin, total iron binding capacity and sometimes transferrin saturation.
MCV, along with mean corpuscular hemoglobin (MCH), and mean corpuscular hemoglobin concentration (MCHC) , is a part of RBC indices (erythrocyte indices), which are measurements and/or calculations for determining the size, content, and hemoglobin concentration.ndications/Applications. Mean corpuscular volume (MCV) laboratory test, as part of a standard complete blood count (CBC), is used along with other RBC indices (MCH and MCHC) to help classify the cause of anemia based on red cell morphology. See also the Interpretation section above.