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Home Biochemistry Structure and Properties of Peptides See What Others Are Saying!
  • Question
  • The nature of peptide bond can be best explained as


  • Options
  • A. partial double bond
  • B. truly double bond
  • C. Hydrogen bond
  • D. Van der waals force

  • Correct Answer
  • partial double bond 


  • More questions

    • 1. Which of the following is not true of glycolysis?

    • Options
    • A. ADP is phosphorylated to ATP via substrate level phosphorylation
    • B. The pathway does not require oxygen
    • C. The pathway oxidizes two moles of NADH to NAD+ for each mole of glucose that enters
    • D. The pathway requires two moles of ATP to get started catabo-lizing each mole of glucose
    • Discuss
    • 2. X-rays cause

    • Options
    • A. the formation of thymine dimers
    • B. ionization of water in the cell
    • C. heat
    • D. none of the above
    • Discuss
    • 3. Micelles of fatty acids in water are organized such that the __________ faces the solvent and the __________ are directed toward the interior

    • Options
    • A. carboxylic acid groups, hydrocarbon chains heads
    • B. hydrophilic heads, hydrophobic tails
    • C. hydrocarbon chains, carboxylic acid groups
    • D. both (a) and (b)
    • Discuss
    • 4. Which of the following is the basis of first dimension of separation for two-dimensional electrophoresis?

    • Options
    • A. Molecular mass
    • B. Solubility
    • C. Isoelectric point
    • D. Folding
    • Discuss
    • 5. Tyrosine is degraded to acetoacetyl CoA and fumarate and is described as a

    • Options
    • A. glucogenic amino acid
    • B. ketogenic amino acid
    • C. ketogenic and glucogenic amino acid
    • D. keto-gluco amino acid
    • Discuss
    • 6. In column switching chromatography

    • Options
    • A. compounds trapped on one column are eluted to another column
    • B. one column is removed and replaced by another
    • C. the flow to the column is switched on and off repeatedly
    • D. any of the above
    • Discuss
    • 7. Since ?G° = -RTlnK

    • Options
    • A. a 10-fold increase in K decreases ?G° by about 10-fold
    • B. a 10-fold decrease in K decreases ?G° by about 2.3*RT
    • C. a 10-fold increase in K decreases ?G° by about 2.3*RT
    • D. a 10-fold decrease in K increases ?G° by about 10-fold
    • Discuss
    • 8. Which one of the following is not the intermediate of Kreb's cycle?

    • Options
    • A. Isocitrate
    • B. Succinate
    • C. Fumarate
    • D. Stearate
    • Discuss
    • 9. In electron transport, electrons ultimately pass to

    • Options
    • A. ADP
    • B. cytochrome b
    • C. oxygen
    • D. none of these
    • Discuss
    • 10. The vitamin riboflavin is part of the __________ molecule.

    • Options
    • A. ferredoxin
    • B. FAD
    • C. pyridoxal phosphat
    • D. pyrophosphate
    • Discuss


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