Explain the following pathways: what is the Krebs cycle and what substances can enter into this...

Explain the following pathways:

what is the Krebs cycle and what substances can enter into this cycle? What are the products of this cycle and where do they go?

what is ETS or oxidative phosphorylation and how does it allow for the production of ATP?

what are transamination and deamination and how do they allow for proteins to produce ATP?

Expert Solution

1.

Krebs Cycle is a series of chemical reactions which is initiated by Acetyl coenzyme A and ends by producing carbo dioxide. Two Krebs cycle are operated at same time. The products of Krebs cycle move towards ETC.

2.

Oxidative phosphorylation is very vital process which is necessary to produce ATP due to transfer of electrons from NADH or FADH2 to O2 by a series of electron carriers. This process is observed in mitochondria. Oxidative phosphorylation is the major source of ATP production in aerobic organisms.

During oxidative phosphorylation, the electrons are exchanged between molecules, causing creation chemical gradient which promotes the production of ATP.

3

Transamination is the process of transfer of amino group on/ to keto acid that produces a new amino acid.
Deamination is the process of removal of amino group from the structure of a molecule.

Transamination and deamination are used only in reserve cases when there is decrease in the level of glucose. Here glutamate is converted into alpha ketoglutarate

Sydney Mullin answered 1 year ago

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