Biology, 23.07.2019 02:00 rwlockwood1

During the electron transport chain, which process leads to the production of large amounts of atp? a. nadh combines with fadh 2 to produce large amounts of atp. b. water is broken down into oxygen and hydrogen ions to produce atp. c. high-energy electrons pump hydrogen ions against the concentration gradient. d. energy carriers release carbon dioxide that flows through the mitochondrial membrane.

Answers: 1

Show answers

Answers

C. High energy electrons pump hydrogen ions against the concentration gradient. The final stage of cellular respiration is oxidative phosphorylation. This is why you breathe oxygen. In the electron transport chain, electrons are passed from one molecule to another. At the end of the electron transport chain, oxygen accepts the electrons and picks up protons to form water. The electron transport chain occurs in the mitochondria, which has a double plasma membrane. The electrons are passed along proteins, or cytochromes, in the inner membrane. Each time an electron is passed, it pumps a hydrogen ion, or proton, into the the intermembrane space, or the space between the two membranes. At the end of the electron transport chain is an ATP synthase. The ATP synthase pumps the hydrogen back in, and the electron attaches to an oxygen along with the hydrogen, making water. The energy is transferred to an ADP, which becomes an ATP when it uses the energy to add a phosphate.

Answer from: Quest

you are certainly talking about this picture:

a: is the label of the white square, it is showing the replication fork, formed by helicase (d) ==> so it is the site of dna separation and replication

b: is a new dna brand that is following directly the replication fork, so it is continuous ==> built continuously from 5' to 3

c: dna polymerase cannot replicate dna on its own, it needs the of their proteins, and one of them plays the role of a clamp which fixes the dna with the dna template and increases the processivity of the enzyme. ==> stops polymerase from falling off the template.

d: is the enzyme responsible for forming the replication fork (helicase) ==> unwinds and separates dna into two strands

e: is the delayed strand, it is built in the opposite sense of the helicase, so dna will be built in fragments ==> built fragments from 5' to 3 joins

and finally f: is the enzyme that builds the new dna strand (dna polymerase) ==> adds nucleotides to make a new dna helix.

credit: gradman555p98x9p

Another question on Biology

Biology, 22.06.2019 01:30

Apopulation of black bears depends on salmon from a stream for food. if a drought causes the stream to run dry one year, how will this likely impact the black bear population?

Answers: 2

Answer

Biology, 22.06.2019 01:30

What are the doorways into and out of cells, attached to the membrane, and built in the rough er.

Answers: 2

Answer

Biology, 22.06.2019 03:30

The graph below compares the rates of reaction of a burning candle and an exploding firework. comparing chemical reactions what can you conclude from the graph? the reaction that causes a firework to explode requires less energy to start, and occurs more rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires less energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs more rapidly than the reaction that causes a candle to burn. mark this and return

Answers: 2

Answer

Biology, 22.06.2019 09:00

What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.

Answers: 2

Answer

You know the right answer?

During the electron transport chain, which process leads to the production of large amounts of atp?...

Questions