What is the first intermediate compound in the krebs cycle

pyruvate

Explanation:

Pyruvate, the product of glycolysis, is  converted to acetyl-CoA, the starting material  for the citric acid cycle, by the pyruvate  dehydrogenase complex. Acetyl-CoA donates its acetyl group  to the four-carbon compound oxaloacetate to form the  six-carbon citrate.

Pyruvate is the first intermediate compound in the Krebs cycle.

Explanation:

there are mainly three domains in biological classification namely; archaea, bacteria, and eukarya.

archaea includes all the prokaryotic cells which are characterized by their lipid membranes. they have branched hydrocarbon which is attached to glycerol through an ether linkage.

bacteria includes all the prokaryotic cells, the cell membrane of which are made up of the unbranched fatty acid chain. in addition, they are attached to glycerol through an ester bond.

eukarya includes all the eukaryotic cells, that is, the cells contain a nucleus and other membrane-bound cell organelles.

they can be autotrophic as well as heterotrophic, unicellular as well as multicellular

they include kingdoms like protista, plantae, animalia, fungi et cetera.

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explanation:

well the answer is 2!