Answer:
The correct answer is option A, that is, cytochrome c oxidase.
Explanation:
A sequence of complexes, which conduct electrons from electron donors to electron acceptors through redox reactions, that is, both oxidation and reduction reactions taking place simultaneously is termed as the electron transport chain. This conduction of electrons is further combined with the mediation of protons across a membrane.
Four membrane-bound complexes are present within the mitochondria, of these in complex IV or cytochrome c oxidase, the withdrawal of 4 electrons takes place from 4 molecules of cytochrome c, and is mediated towards the molecular oxygen, which further gives rise to 2 molecules of water. During the process, 8 H+ are withdrawn from the mitochondrial matrix, which contributes to the proton gradient.
<span>Amount of salt is the dependent variable</span>
Answer: Option D
pyruvate is converted to lactate when NAD+ necessary for glyceraldehyde phosphate dehydrogenase reaction is regenerated in glycolysis.
Explanation:
Anaerobic glycolysis is the conversion of glucose to lactate in muscles cells when there is limited supply of oxygen.
When there is not enough oxygen in the muscle cells for oxidation of pyruvate to NADH(nicotinamide adenine dinuleotide hydrogen) produced in glycolysis, NAD+ (nicotinamide adenine dinucleotide) which is important for glyceraldehyde phosphate dehydrogenase is regenerated from NADH by reduction of pyruvate to lactate.
The answer is catalysts. Catalysts speed up the rate of a <span>reaction</span> without<span> </span>getting consumed in the process. Catalysts,
in <span>this</span> case, enzymes act by reducing the
activation energy or changing the reaction mechanism (such as foregoing some transition
states). A popular enzyme is a <span>carbonic</span>
anhydrase that <span>catalyzes</span> the formation of
carbonic acid in the <span>blood</span> plasma (<span>from</span> carbon <span>dioxide</span>
and water), a critical function in regulating blood pH.
It is obvious that the sandstone is older than the granite. This is because the sandstone had to already exist when the granite formed from molten rock, as some of the sandstone was captured within the layer of hardening granite. The geological principle of inclusions supports this conclusion.<span> Inclusions, in this case the sandstone, are always older than the rock they are found in. </span>
