Biology, 09.04.2020 09:11 j1theking18

Which processes require oxygen? Check all that apply.

conversion of pyruvic acid to Acetyl CoA
conversion of pyruvic acid to lactic acid
conversion of pyruvic acid to alcohol
production of carbon dioxide in the citric acid cycle
production of water in the electron transport chain
production of pyruvic acid in glycolysis

Answers: 3

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Oxygen is the most vital element that is required exclusively by all animals, plants and some type of microorganisms. It has an atomic number of 8 and is represented with the alphabet O.

The cycles that need oxygen are :

Option 1. The transformation of pyruvic acid to acetyl-CoA.Option 5. The formation of water in the electron transport chain.

The processes can be explained as:

Oxygen is crucial for metabolic operations in the cells. The organisms utilizing oxygen for processes are called aerobic.The procedure of transforming pyruvic to Acetyl coenzyme A requires oxygen. Pyruvate is the outcome of the glycolysis cycle of cellular respiration. In the presence of oxygen molecules, cellular respiration moves forward towards the TCA cycle to produce Acetyl CoA.In ETC electrons transfer occurs from one complex to another in the mitochondrial membrane that needs oxygen as the final acceptor that produces the water molecule.

Therefore, in ETC and conversion of pyruvic requires oxygen.

To learn more about ETC and Krebs cycle follow the link:

link

Answer from: nelly88

This is a cellular respiration question, related to biology.

Some processes in our bodies require the use oxygen, others do not.

In this case, the conversion of pyruvic acid to acetyl co-enzyme A and the production of water in the electron transport chain do require oxygen.

If oxygen was not present for pyruvate, it would turn into lactic acid via fermentation. Water in the ETC is formed in the process when NADH and FADH2 are converted to molecular oxygen due to the electron transporters. The protons are then pumped and oxygen is reduced to form H2O.

Answer from: Quest

explanation:

the fossil record extends back to a dog-like ancestor some 55 million years ago, which gave rise to the first horse-like species 55 to 42 million years ago in the genus eohippus.

Answer from: Quest

answer: - few nutrients

high pressure

low temperatures

explanation: 1. few nutrients: open-ocean zone is located way far from the land, which is the main source of the essential nutrients.2. high pressure: pressure increases by 1 atmosphere for every 10 meters increase in depth.3. ample sunlight: a large fraction of the sunlight is reflected back to the atmosphere from the sea surface. 4. varying salinity: below the thermocline, the water is isolated from the atmosphere so the salinity remains stable over the year.5. low temperatures: the temperature of open-ocean zone ranges from a low of -2°c to an average of 17°c

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Which processes require oxygen? Check all that apply.

conversion of pyruvic acid to Acet...

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