How many energy conversions occur when both acetyl-coa molecules go through the krebs cycle?

The correct answer will be 10 conversions.

Explanation:

Krebs cycle is a cyclic process of cellular respiration which converts the Actyl-CoA molecules to CO₂ and energy in the form of ATP with some energy stored in the NADH₂ and FADH₂. It provides electrons and protons required for the electron transport chain or ETC.

Krebs cycle starts with the conversion of acetyl-CoA where energy conversion takes place in the step as follows:

1. Iso-citrate to α-ketoglutarate -           form NADH₂

2. α-ketoglutarate to succinyl CoA-      form NADH₂

3. Succinyl CoA to succinate-                form GTP

4. Succinate to fumarate-                       form FADH₂

5. Malate to oxaloacetate-                     form NADH₂

1 cycle produces 1  FADH₂, 3 FADH₂ and 1 GTP = 5 conversions

Since cycle completes after two cycles ,therefore, 5X2=10 conversions.

Thus, 10 conversions are the correct answer.

the real answer is b. scintillation counter

step 1: initiation

initiation is the beginning of transcription. it occurs when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

step 2: elongation

elongation is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

step 3: termination

termination is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.