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6. How many polypeptide chains in insulin?

  • 1
  • 2
  • 4

7. How many amino acids in 1 chain of pepsin?

  • 154
  • 327
  • 126
  • 50

8. proteins with regular, repetitive shapes

  • fibrous
  • globular

9. The 4 haem groups in haemoglobin contain what ion...

  • Oxygen
  • Iron
  • Chlorine

10. mostly form enzymes and hormones

  • globular
  • fibrous

11. What bond is formed when making a triglyceride?

  • Ester
  • Peptide
  • Glycosidic

12. a glucose + fructose =

  • sucrose
  • cellobiose
  • lactose
  • maltose

13. globular proteins

  • insulin, haemoglobin
  • collagen, keratin, elastin

14. A polysaccharide containing molecules of the same monosaccharide is a.....

  • homopolysaccharide
  • heteropolysaccharide
  • polysaccharide

15. What bond is formed after a condensation reaction?

  • Amino
  • Glycosidic
  • Peptide
  • Ester

16. What is a hydrogen bond?

  • a weak interaction that occurs whenever molecules contain a slightly -vely charged atom bonded to a slightly +vely charged hydrogen atom
  • when electrons are shared between atoms
  • when two molecules are joined together with removal of water

17. Fibrous proteins are...

  • structural
  • functional

18. proteins with structural functions

  • fibrous
  • globular

19. b glucose + b glucose =

  • cellobiose
  • maltose
  • sucrose
  • lactose

20. Which polysachharide does not have 1-6 glycosidic bonds?

  • Amylopectin
  • Amylose
  • Glycogen