You incubate isolated intact mitochondria in a buffered solution containing succinate (an oxidizable substrate) and ADP plus Pi.
Upon adding cyanide (an inhibitor of Complex IV, cytochrome c oxidase), you examine the effect on oxygen consumption and the production of ATP. What will occur?
Answer: "cyanide interferes with the reduction of oxygen,which decreases the proton gradient and ATP production."
Explanation:
The electron transport chain is an energy converter,transforming chemical energy to the energy of a proton gradient.As electrons flow along their energy gradient,some of the energy used by each complexes(NADH dehydogenase,cytochrome b-c1 and cytochrome oxidase a-a3) to pump proton from the mitochondrial matrix into the intermembrane space.This creates a proton gradient which in turn drives them back across inner membrane through ATP synthase,which uses the energy of H+ flow to synthesize ATP from ADP and Pi.
When cyanide is added,it inhibits cytochrome c,one of the complexes responsible to transfer electrons along the chain.Hence electron transport chain will become nonfunctional.Oxygen will not be reduced.And since the electron transport chain will be nonfunctional,no proton gradient will be available to drive ATP synthase to synthesize ATP from ADP and Pi, so no ATP will be produced.
In this example I used blue and brown eyes. Brown eyes are a dominant trait and are represented by a big B while blue eyes are recessive and represented by a little b. If an offspring gets a B from the father and a b from the mother the offspring will have brown eyes.
need picture brahj, but I got u, when it moves from high concentration to an area of low concentration, a process called diffusion. its process of moving glucose across the cell membrane is called facilitated diffusion.
The lytic cycle involves the reproduction of viruses using a host cell to manufacture more viruses; the viruses then burst out of the cell. The lysogenic cycle involves the incorporation of the viral genome into the host cell genome, infecting it from within.
