Introduction To Cell Biology ( Mitochondria )

Explanation
Mitochondria are known as the powerhouse of the cell because they are responsible for producing the majority of the cell's energy in the form of adenosine triphosphate (ATP) through a process called cellular respiration. This organelle contains its own DNA and is able to convert nutrients into ATP, which is used to fuel various cellular processes. Without mitochondria, cells would not have the energy necessary to carry out essential functions and would not be able to survive.

Explanation
Cellular respiration is the correct answer because it is the process by which cells convert glucose and oxygen into ATP, the energy currency of the cell. It occurs in the mitochondria and is essential for the survival and functioning of cells. "The cellular respiration" and "cellularrespiration" are incorrect variations of the correct answer.

Explanation
The outer membrane of cells contains a large number of integral proteins known as porins. These porins are responsible for facilitating the transport of molecules, such as ions and small molecules, across the outer membrane. They form channels or pores that allow these molecules to pass through, regulating their entry and exit from the cell. The presence of porins in the outer membrane is crucial for maintaining the proper balance of molecules and ions inside the cell.

Explanation
The correct answer is "Translocase." Translocase is a large multisubunit protein found in the outer membrane. It is responsible for the transport of proteins across the membrane, facilitating their movement from one side to the other. This process is crucial for various cellular functions, including protein synthesis, membrane biogenesis, and the import/export of molecules. Therefore, the term "Translocase" accurately describes the function and location of this protein.

Explanation
The space between the outer membrane and the inner membrane is referred to as the intermembrane space. It is a region found within the mitochondria and plays a crucial role in various cellular processes. This space is involved in the transport of molecules, ions, and metabolites across the mitochondrial membranes, allowing for communication and exchange between the different compartments of the mitochondria. Overall, the intermembrane space is essential for maintaining the proper functioning of mitochondria and facilitating their role in energy production.

Explanation
The correct answer is "the matrix". The matrix refers to the space enclosed by the inner membrane. This is where various cellular activities take place, including the synthesis of proteins, DNA replication, and the production of ATP. The matrix contains enzymes, ions, and other molecules necessary for these processes. It is an essential component of the mitochondria, which are responsible for generating energy for the cell.