1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
aleksandr82 [10.1K]
3 years ago
11

In cellular respiration, a series of molecules forming an electron transport chain alternately accepts and then donates electron

s. What is the advantage of such an electron transport chain? A scheme of cellular respiration. The initial compounds are 2H obtained from food via NADH and half of O2. 2H transforms into 2H plus and 2 electrons. These products have lower free energy than 2H and half of O2. Electrons lose their free energy in the electron transport chain. This energy is used for ATP synthesis. 2H plus and half of O2 lose their free energy and react with two electrons from the electron transport chain to create a water molecule that has less free energy than all the reactants. In cellular respiration, a series of molecules forming an electron transport chain alternately accepts and then donates electrons. What is the advantage of such an electron transport chain?
Biology
1 answer:
Elanso [62]3 years ago
7 0

Answer:

Release of electrons from reducing powers to O2 via four protein complexes allows release of small amount of energy at each step and makes the process energy efficient.

Explanation:

If NADH and FADH2 would reduce O2 directly, a large amount of energy would have been released in a single step. On the other hand, oxidation of these reducing powers through a series of electron carrier release a small amount of energy at each step which in turn is temporarily stored in form of proton motive force across the inner mitochondrial membrane.

Transfer of a pair of the electron to O2 pumps four protons by complex I, four by complex III and two by complex IV. The resultant proton motive force effectively stores the energy of electron transfer. This energy is then used to drive ATP synthesis.

You might be interested in
An organism reacts to changes in its environment. this is called
Aliun [14]
An organism reacts to changes in its environment. this is called Behavior
6 0
3 years ago
Which type of rock forms only from the solidification of magma?
bixtya [17]

Answer:

igneous rock

Explanation:

Look at the chart metamorphic rock melts turning into magma magma solidifies into IGNEOUS ROCK

3 0
3 years ago
Directions: Type your answer in the box. Spell all words correctly.
MrMuchimi

Answer:

kinetic

Explanation:

5 0
3 years ago
Larry moved from Chicago to Atlanta. For the first two years he lived there he had no allergies in the spring. Then, in the thir
valkas [14]
This might have been the cause of not being exposed to this specific pollen during his years in Chicago. Allergic reactions can develop when the stimuli presented even when its not contagious causes the immune system to trigger and act in a defensive stance. This delayed effect may have been the cause of the sudden expression of the immune system. 
8 0
3 years ago
Read 2 more answers
The main goal of developing technology is to
quester [9]

A)  

learn about the universe and the laws of nature.  

B)  

design new scientific instruments.  

C)  

make new inventions and processes to benefit humans.  

D)  

make new scientific discoveries.


I believe the correct answer is C, but I'm 100% on this.  Hope this helped though!

5 0
3 years ago
Other questions:
  • Which of the following is an example of an emphasis on production quality?
    8·1 answer
  • Horsing around in the lab is always ok when no experimenting is being done never allowed fine when you are alone ok because it i
    9·2 answers
  • Organisms must have variation within a population in order for natural selection to occur. Which situation is an example of this
    12·2 answers
  • Bioethanol is an example of plants being used for what function?
    7·1 answer
  • European Jewish Immigration
    13·1 answer
  • SOMEONE HELP PLEASEE
    13·1 answer
  • After creating a hypothesis, what is the next step in Mary and Jim’s investigation?
    15·1 answer
  • Three factors that make up abiotic environment of tropical rainforest
    5·1 answer
  • In the trp (tryptophan) operon, the __________ binds to the product of the trp operon synthesis pathway, called __________, form
    10·1 answer
  • A major limitation of using photovoltaic cells to generate electricity is that they.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!