BioK Quick Quiz on Proteins (2.4) BioKnowledgy Quick Quiz on Proteins (2.4) [11 marks] 1. Which of the following correctly shows a peptide bond between two amino acids? (Total 1 mark) 2. How many molecules of water are required to completely hydrolyse a polypeptide made up of 23 amino acids? A. 11 B. 22 C. 23 D. 44 (Total 1 mark) 3. What is denaturation? A. A structural change of a protein that results in the loss of its biological properties B. A change in the genetic code of an organism C. A change in the amino acid sequence of a protein causing a disruption of its 3D shape D. The process by which amino acids are broken down and ammonia is released (Total 1 mark) http://bioknowledgy.weebly.com/ (Chris Paine) BioK Quick Quiz on Proteins (2.4) 4. State definition of the proteome. .................................................................................................................................................................... .................................................................................................................................................................... (1) 5. State four functions of proteins, giving a named example of each. .................................................................................................................................................................... .................................................................................................................................................................... .................................................................................................................................................................... .................................................................................................................................................................... .................................................................................................................................................................... (4) 6. Proteins can be characterised as either being fibrous or globular. (a) State one example of a fibrous protein and one example of a globular protein. Fibrous protein: ........................................................................................................... Globular protein: ......................................................................................................... (1) (b) Compare and contrast the structure of fibrous and globular proteins. ...................................................................................................................................... ...................................................................................................................................... ...................................................................................................................................... ...................................................................................................................................... ...................................................................................................................................... (2) http://bioknowledgy.weebly.com/ (Chris Paine)
