Which type of cells have a high concentration of mitochondria?
(1 point)
• skin cells
• nerve cells
• blood cells
• heart cells
Heart cells
Heart cells have a high concentration of mitochondria.
To determine which type of cells have a high concentration of mitochondria, we need to understand the role of mitochondria in cells and consider the energy requirements of different cell types.
Mitochondria are known as the powerhouses of the cell and play a vital role in generating energy in the form of adenosine triphosphate (ATP) through a process known as cellular respiration. Cells that require a lot of energy will typically have a higher concentration of mitochondria.
Let's analyze the given options and their energy requirements to identify which type of cells likely have a high concentration of mitochondria:
1. Skin cells: While skin cells do require energy for various processes, they are not highly metabolically active compared to other cell types. Therefore, they may not have a high concentration of mitochondria.
2. Nerve cells: Nerve cells, also known as neurons, are involved in transmitting electrical signals throughout the body. This activity requires a significant amount of energy, so nerve cells generally have a high concentration of mitochondria.
3. Blood cells: Blood cells, such as red blood cells (erythrocytes), primarily carry oxygen and nutrients to tissues and organs. They don't have a nucleus or other organelles, including mitochondria. As a result, blood cells do not have a high concentration of mitochondria.
4. Heart cells: The heart is an organ that is continuously active, pumping blood and ensuring the circulation of oxygen and nutrients throughout the body. Heart cells, also called cardiac muscle cells, have a high energy demand. Therefore, they possess a substantial concentration of mitochondria to produce the required ATP for contraction.
Based on the analysis, the type of cells with a high concentration of mitochondria among the given options would be heart cells.