Hello there Shahnaaz!
Your answer is B. Nucleus
The Nucleus directs a cells activities and is often deemed the "brain" of a cell.
Hope this helped you and have a wonderful day!
~Rose
my·o·fi·bril
Dictionary result for myofibril
/ˌmīōˈfībrəl,-ˈfib-/
noun
noun: myofibril; plural noun: myofibrils
any of the elongated contractile threads found in striated muscle cells.
In the deformed mice, somatic cells but not germ cells were mutated. The original mouse's germ cells were mutated.
The polar head of a phospholipid is made of phosphate. The polar head has a negative charge that is made up of phosphate molecules. This polar region attracts water and is positioned outward to interact with the water.
I hope this helps!
Answer:
The reduced form of cytochrome c more likely to give up its electron to oxidized cytochrome a having a higher reduction potential.
Explanation:
Electrons from NADH and FADH2 flow spontaneously from one electron carrier of the electron transport chain to the other. This occurs since the proteins of the ETC are present in the order of increasing reduction potential. The reduced cytochrome b has lower reduction potential than cytochrome c1 which in turn has a lower reduction potential than the cytochrome c.
Cytochrome c is a soluble protein and its single heme accepts an electron from cytochrome b of the Complex III. Now, cytochrome c moves to complex IV which has higher reduction potential and donates the electron to cytochrome a which in turn passes the electrons to O2 via cytochrome a3.
