IFor each molecule of FADH_2 that donates electrons to the electron transport ch
ID: 1071929 • Letter: I
Question
IFor each molecule of FADH_2 that donates electrons to the electron transport chain, ATPs will be produced 1.5 2 2.5 3 10 For questions 9-18, match the description on the left with the correct amino acid on the right. Answers will only be used once. the only achiral amino acid methionine the side chain of this amino acid has an alcohol group glycine an amino acid with an aromatic group glutamate an ammo acid with an acidic side chain tryptophan the first ammo acid used for protein synthesis phenylalanine threonine cysteine Which of the following statements concerning the tripeptide Val-Ala-Gly is correct? The N-terminal amino acid residue is Val. The N-terminal amino acid residue is Gly. Its structure can also be written as Gly-Ala-Val. It's constitutionally isomeric with three other peptides. Two of the above are correct In which of the following pairs of proteins are both members of the pair fibrous proteins? alpha-keratin and collagen collagen and hemoglobin hemoglobin and myoglobin alpha-keratin and hemoglobin none of the above are correct Which of the following forces is not used to bind a substrate molecule to the active site of an enzyme?Explanation / Answer
11) answer is 2
The enzyme removes two hydrogen atoms (2H+ and 2e-) from its substrate and 2 ATPs will produced.
12) answer is glycine
glycine which has two indistinguishable hydrogen atoms on the alpha carbon. Therefore, all alpha amino acids but glycine can exist in either of two enantiomers, called L or D-amino acids, which are mirror images of each other.
13) threonine has alcohol side group
14) phenylalanine has aromatic group
15) glutamic acid or glutamate (Glu). Their side chains have carboxylic acid groups
16) methionine
Synthesis of a protein starts with the binding of ribosomal subunits and initiation factors to the mRNA. In this process, the initiation factor eIF2 is bound to initiator tRNA (met-tRNAi) and not to other tRNAs. Upon recognition of the initiation codon AUG, translation starts with the methionine that is bound to the initiator tRNA.
17) option A is correct
18) A