Mitochondria are called the powerhouses of the cell. Which of the following observations support this statement?a)Mitochondria are found in almost all plant and animal cells.b)The enzymes of the Krebs cycle and the cytochromes are found in mitochondria.c)Mitochondria synthesise ATP.d)Mitochondria have a double membrane.Correct answer is option 'C'. Can you explain this answer?

Question

Answer

*ATP stands for Adenosine triphosphate.... *It is produced when a phosphate molecule is added to the adenosine diphosphate it becomes adenosine triphosphate. This process is called phosphorylation..... *If this process occurs in the presence of oxygen it is called oxidative phosphorylation.... *Most of the ATP is synthesized via oxidative phosphorylation in the mitochondria, hence they are called powerhouses of the cell..... *Thus, they are responsible for producing energy in the cell and known as the powerhouse of the cell !!!

Answer

As it produces more ATP during aerobic respiration,it is called power house of the cell

Answer

Observations supporting the statement that mitochondria are called the powerhouses of the cell:

There are several observations that support the statement that mitochondria are the powerhouses of the cell. Among the given options, option C - 'Mitochondria synthesize ATP' is the correct answer. Let's delve into the details:

1. Mitochondria synthesize ATP:
- ATP (adenosine triphosphate) is the primary energy currency of the cell. It is responsible for storing and transferring energy within cells.
- Mitochondria are the main sites of ATP synthesis through cellular respiration, a process that occurs in the mitochondria's inner membrane.
- During cellular respiration, glucose and other organic molecules are broken down in a series of enzymatic reactions to produce ATP.
- This process involves the Krebs cycle (also known as the citric acid cycle or TCA cycle) and the electron transport chain, both of which take place within the mitochondria.
- The Krebs cycle generates high-energy electron carriers (NADH and FADH2) that are used in the electron transport chain to produce ATP.

2. The enzymes of the Krebs cycle and the cytochromes are found in mitochondria:
- The Krebs cycle, a key component of cellular respiration, occurs within the mitochondrial matrix.
- The mitochondrial matrix contains all the necessary enzymes for the Krebs cycle, such as citrate synthase, isocitrate dehydrogenase, and malate dehydrogenase.
- Cytochromes, which are essential components of the electron transport chain, are also found in the inner mitochondrial membrane.
- These enzymes and cytochromes play crucial roles in generating the energy-rich molecules (NADH and FADH2) needed for ATP synthesis.

3. Mitochondria have a double membrane:
- Mitochondria possess a double membrane structure, consisting of an outer membrane and an inner membrane.
- The outer membrane acts as a protective barrier, while the inner membrane is highly folded into structures called cristae.
- The inner membrane contains the electron transport chain components and ATP synthase, which are crucial for ATP production.
- The folding of the inner membrane increases its surface area, allowing for more efficient ATP synthesis.

4. Mitochondria are found in almost all plant and animal cells:
- While this observation indicates the widespread presence of mitochondria, it does not directly support the statement that mitochondria are the powerhouses of the cell.
- Mitochondria are indeed found in most eukaryotic cells, including plant and animal cells, but their presence alone does not establish their role as the powerhouses of the cell.

In conclusion, the correct observation that supports the statement that mitochondria are called the powerhouses of the cell is that mitochondria synthesize ATP. This is achieved through the Krebs cycle and the electron transport chain, which occur within the mitochondria. The other observations mentioned are also relevant to the function and structure of mitochondria but do not directly support the statement.

Answer

ATP is the energy currency of the body.Respiration takes place in mitochondria and the energy is released in the form of ATP.

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