1.Metabolism - Redox Reactions

1.Metabolism - Redox Reactions
For each of the reactions shown,indicate if it is an oxidation,a reduction,or neither an oxidation nor a reduction.
R−CH2OH → R−CHO
HOOC−CH=CH−COOH → HOOC−CH2−CHOH−COOH
R−CHO → R−COOH
NADH + H+ → NAD+
2.Match the types of molecule with their roles.
Ax05Transfer RNA (tRNA)
Bx05Protein
Cx05Double Stranded DNA
Dx05negative strand RNA
Ex05Ribosomal RNA (rRNA)
Fx05Messenger RNA (mRNA)
A molecule of nucleic acid that is an important structural element of the enzyme complex that synthesizes proteins.
A molecule that is a chain of amino acids and may be an enzyme or a component of the structure of a cell.
A molecule of nucleic acid that contains the information needed to direct the synthesis of a protein by a ribosome.
The repository of genetic information in all cellular life forms.
A strand of nucleic acid that is the complement of the strand that is read by ribosomes,this type of nucleic acid may be the genomic material or a replication intermediate of certain viruses.
A molecule of nucleic acid that is covalently attached to an amino acid and is used in the reading of codons by a ribosome.
3.Match these descriptions of the genetic code and the central dogma with the proper definitions.
Ax05Ribosomes and transfer RNAs are involved in the translation of the genetic code.
Bx05The genetic code is universal.
Cx05RNA polymerase is involved in the transcription of the genetic code.
Dx05The genetic code is redundant.
Ex05The genetic code is unambiguous.
A segment of the genetic information which is encoded in double stranded DNA is copied to a single stranded molecule of RNA.
Often two or more different codons specify the same amino acid to be incorporated into a growing protein chain.
With some minor exceptions,the genetic code is the same in all living organisms.
A given codon ALWAYS specifies the incorporation of a specific amino acid into a growing protein chain.
Protein synthesis requires the conversion of information which is encoded in a sequence of nucleotides to a sequence of amino acids.