Biology, 11.08.2021 18:50 joyce945

Why are NADH and FADH2 necessities in the electron transport chain?(1 point) They power the electron transport chain.
They power the electron transport chain.

They remove electrons from the electron transport chain.
They remove electrons from the electron transport chain.

They move down the electron transport chain.
They move down the electron transport chain.

They move electrons to the electron transport chain.

Answers: 2

Show answers

Answers

NADH and FADH2 are necessities in the electron transport chain because they power the chain by moving electrons into it.

NADH and FADH2 are both generated at the initial stages of respiration (the Kreb's cycle), a process during which food materials are broken down to generate energy. NADH is generated from NAD+ as a result of the addition of electrons while FADH2 is generated from FAD also due to the addition of electrons.

Once generated, both compounds get transferred into the innermost membrane of the mitochondrion where they travel down the electron transport chain, donating their electrons in the process and creating an electrochemical gradient to generate ATP.

Without NADH and FADH2, there will not be electrons to power the electron transport chain and the generation of ATP would become impossible.

More about the electron transport chain can be found here:

Answer from: nayellisoto15

The correct answer is They move electrons to the electron transport chain.

Explanation:

just took the quick check!

hope this helps :)

Answer from: Quest

answer: carbon 14 can only be used to determine the age of the organisms that were once living, and igneous rocks are non living.

explanation:

carbon 14 dating is used to determine the age of the sample by estimating the amount of carbon 14 present in the sample and then comparing it with a reference standard.carbon 14 is a isotope of carbon which is radioactive and unstable. carbon 14 is assimilated by all plants and animals throughout their life from carbon dioxide. however, one the organisms die they stop this assimilation and the carbon 14 content starts to decrease.by knowing how much of carbon 14 is left in an organism after his death, one can estimate the age of the organism. the materials whose age can be estimated by carbon 14 method are the organic compounds. however, some inorganic compounds such as aragonite shell can also be dated.however, if we consider the igneous rocks it is a non living component which never accumulated carbon 14 in it and thus, we cannot use carbon 14 dating method to estimate its age.

Answer from: Quest

. the sierra madre fault zone of southern california

. the san andreas fault california

Another question on Biology

Biology, 21.06.2019 20:00

Which of the following sex and generation combinations directly produces the pollen tube of angiosperms? a) male gametophyteb) female gametophytec) male sporophyted) female sporophyte

Answers: 1

Answer

Biology, 22.06.2019 06:00

What is the statement plant growth is affected by the color light

Answers: 2

Answer

Biology, 22.06.2019 10:20

What are the ingredients of oobleck?

Answers: 2

Answer

Biology, 22.06.2019 14:50

What do we call an individual that has inherited two identical alleles for the same trait? a.homozygous b.heterozygous c.monozzygous