Question

In the payoff phase:

Indicate the two reactions that produce ATP by substrate-level phosphorylation and the one reaction that produces NADH.

EXPLAIN THE IMPORTANCE OF THESE PRODUCTS.

----is NADH important in order to make more ATP?? ATP is needed in order to continue glycolysis correct?

Answer 1

ATP: ATP is the molecule that supplies energy for metabolic processes within your cells. Substrate level phosphorylation takes place outside of mitochondria, but it also takes place inside. when it takes place outside in cytoplasm, it is occuring during glycolysis, which is the breakdown of glucose to produce pyruvate and energy.

Glycolysis does not require oxygen, but oxygen is an important part of ATP production inside the mitochondria. Substrate level phosphorylation inside the mitochondria occurs during the Krebs cycle, also referred to as the citric acid cycle. This cycle is a sequence of chemical reactions in which molecules are broken down in the presenc of oxygen to generate energy. The crebs cycle takes place inside the folded inner membrane of the mitochondria, in an area known as the matrix.

NADH: The citric acid cycle is a series of reactions that produces two carbondioxide molecules, one GTP/ATP, and reduced forms of NADH and FADH2.

Importance of ATP: It transports the energy necessary for all cellular metabolic activities.

Importance of NADH: NADH along with another molecule flavin adenine dinucleotide will ultimately transport the electrons to mitochondria, where the cell can harvest energy stored in the electrons.

YES, NADH can be used by electron transport chain to create further ATP.

In the first half of glycolysis, energy in the form of two ATP molecules is required to transform glucose into two three-carbon molecules.