Question

"Cytochrome c is one of the components of the electron transport chain.

Give the precise location of cytochrome c in the cell. (2)"
a) Cytochrome c is located in the nucleus.
b) Cytochrome c is found in the mitochondria.
c) Cytochrome c is in the cell membrane.
d) Cytochrome c is distributed throughout the cytoplasm.

Answer 1

Cytochrome c is found in the mitochondria and specifically in the inner mitochondrial membrane in eukaryotic cells. In prokaryotic cells, it is found in the cytoplasmic membrane. It plays a key role in electron transfer and ATP production in the electron transport chain.

Step-by-step explanation:

Cytochrome c is an important component of the electron transport chain and is found in the mitochondria. It is located in the inner mitochondrial membrane in eukaryotic cells, such as human cells. In prokaryotic cells, cytochrome c is found in the cytoplasmic membrane. Its role is to transfer electrons between different complexes in the electron transport chain, contributing to the production of ATP, the cell's energy source.