11. Cells use each of the following mechanisms for generating ATP from ADP+ P ex

Question

11. Cells use each of the following mechanisms for generating ATP from ADP+ P except a. autophosphorylation b. photophosphorylation c. substrate level phosphorylation d. oxidative phosphorylation 12. The electrochemical proton gradient made by the electron transport system is used to make ATP and to drive a. flagella rotation. b. conflagration c. translation. d. peptidoglycan hydrolysis 13. Each of these enzyme pathways uses NAD+ as one of its substrates except a. the TCA cycle. b. glycolysis c. the transition step. d. Actually, each of these pathways uses NAD+ as one of its substrates. 14. ATP synthase is in the inner mitochondrial membrane in eukaryotes, but in Gram negative bacteria it's in a. the cell membrane b. the outer membrane c. the cell wall d. the nucleoid membrane

Explanation / Answer

11.Ans- a. autophosphorylation

Autophosphorylation is the process of addition of a phosphate group to serine, threonine or tyrosine residues within protein kinases.

Photophosphorylation is the process of formation of ATP from ADP in the presence of sunlight

Substrate-level phosphorylation is a metabolic process to produce ATP or GTP by the direct transfer of a phosphoryl (PO3) group to ADP or GDP from another phosphorylated compound

Oxidative phosphorylation is the process of formation of ATP by using enzymes.

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