Keytone bodies
lIPIDS
Carbohydrates
glucose or anyother carbohydrate
Cells use lipids when carbohydrates are not available.
Cells use Lipids when Carbohydrates are'nt available.
Glucose is a simple sugar, cells use it as their main source of energy. It is an important carbohydrate in biology.
Lipids
Energy
The energy-rich carbohydrate stored in large quantities in liver and muscle cells is glycogen. Glycogen serves as a readily available source of glucose, which can be quickly mobilized to meet energy demands during physical activity or periods of fasting. The liver primarily regulates blood sugar levels by releasing glucose from glycogen, while muscles use it locally for energy during exercise.
The red blood cells in the body completely rely on glucose, which is a carbohydrate, for energy. Adipose tissue and muscles cells partially rely on glucose as well.
ATP
Cells can produce energy through a process called anaerobic respiration when there is no oxygen available. During anaerobic respiration, cells break down glucose to produce energy without using oxygen. This process produces lactic acid or alcohol as byproducts.