FFLD 4 Flashcards
1
Q
Choose the incorrect answer.
Amino acid side-chains:
A. Can be classified according to their polarity (i.e. polar or non-polar)
B. May be ionised
C. Can be modified after translation
D. Are all structurally and chemically very similar
A
D
2
Q
Two cysteine amino acids can bond together through: A. The sulphur atoms in their side-chain B. Their alpha-carboxyl groups C. Their alpha-amino groups D. Their alpha-carbon
A
A
3
Q
Which one of the following amino acid side-chains is NOT classified as polar? A. -CH2OH B. -CH3 C. -CH2COO- D. -(CH2)4NH3+
A
B
4
Q
A peptide bond: (choose all correct answers)
A. Planar
B. Rigid
C. Flexible
D. Switches between a single and double-bond
E. Is always in the trans configuration
A
A, B, D
