Which type of cells have a high concentration of mitochondria? (1 point)
© skin cells
O heart cells
( blood cells
nerve cells
Heart cells
Heart cells have a high concentration of mitochondria.
To determine which type of cells have a high concentration of mitochondria, we can consider the functions and energy requirements of the given cell types.
1. Skin cells: Skin cells, also known as epithelial cells, primarily serve as a protective barrier and do not require a significant amount of energy. Therefore, skin cells generally have a lower concentration of mitochondria compared to other cell types.
2. Heart cells: The heart is an organ that constantly pumps blood, and as a result, heart cells require a large amount of energy to sustain their contractions. Mitochondria are responsible for producing energy in the form of adenosine triphosphate (ATP) through cellular respiration. Therefore, heart cells have a high concentration of mitochondria to meet their energy demands.
3. Blood cells: Blood cells, including red blood cells (erythrocytes) and white blood cells (leukocytes), play vital roles in carrying oxygen, fighting infections, and coordinating immune responses. These functions do not heavily rely on energy production through mitochondria. Thus, blood cells generally have a low concentration of mitochondria.
4. Nerve cells: Nerve cells, or neurons, are responsible for transmitting electrical signals throughout the body. These signals require a significant amount of energy. While neurons do utilize mitochondria, their concentration can vary depending on the specific type and function of the neuron.
Based on the given options, heart cells are the type of cells that have a high concentration of mitochondria.