WorksheetsCH124_03 18.3 QUIZ_LLizamaII
Total questions: 12
Worksheet time: 3mins
Peptide bonds join two_____
charges
acids
carbon atoms
amino acids
During a formation of a peptide, there is a release of
(a)
Two amino acids in a peptide bond form a______. Three amino acids in a peptide bond form a_____.
2-peptide; 3-peptide
dual peptide; triple peptide
polypeptide; polypeptide
dipeptide; tripeptide
Amino Acids can be abbreviated more than one way.
TRUE
FALSE
The backbone of a peptide contains which repeated sequence?
N-C-C-N-C-C-N-C-C
CN-CN-CN
CHO-CNC-CHO
A-C G-T
Carbon 2 (Alpha carbon) in a peptide is ALWAYS connected to a(n)_____.
base
acid
hydrogen atom
helium atom
The _______group is attached to the alpha carbon and is unique in amino acids.
"branch"
"singular"
"Z"
"R"
"A"
Referring to the image, what are the "N"s in the peptide backbone sequence? Choose ALL that apply.
α-amino group
Beta amino
Alpha amino
N-terminal amino acid
Neutrons
The C-terminus refers to the amino acid with a free COO- group known as the_____.
carbonate
carbohydrate
combiner
carboxyl
The current events article in this presentation talks about a vaccine developed to counter Lyme disease that is transmitted from what
genetics
spiders
flies
ticks
The were 4 general steps mentioned to be followed when writing/drawing the structure of peptides. What was Step 4?
Write the peptide backbone sequence.
Add oxygens to carboxyl groups and hydrogens to amino nitrogens.
Add the side chains to the α-carbons.
Add hydrogens to the α-carbons.
Chapter 18. 3 was specifically about
Side chains
Hydrogen bonds
Chemical reactions
Peptide bonds
