bio II part 3

prokaryotic ribosomes

• Total: 70s

  Large: 50s

  Small: 60s

• Total: 80s

  Large: 60s

  Small: 40s

eukaryotic ribosomes

• Total = 70S

  Large = 50S

  Small = 30S

• Total = 80S

  Large = 60S

  Small = 40S

steps of translation:

Reorder the following

• tRNA binding to codon (A)

• Translocation: peptidyl-tRNA translocates from A to P (mRNA translocates too)

• release of unloaded tRNA (E)

• catalysis of peptide bond: polypeptide cleaved from P tRNA and transferred to aminoacyl-tRNA

common amino acids have _ structures

• similar

• different

amino acids are...

• arranged around a central carbon

• have no particular arrangment

amino group

• n terminus

• r terminus

• amino group

carboxyl group

• n terminus

• c terminus

the r group...

• is the same for each amino acid

• differs for each amino acid

Aspartate is

• negatively charged

• positively charged