Karteikarten
Advanced Pharm Biotech- Proteins
Karten in diesem Stapel (18)
- 1True or False: Proteins are versatile?True
- 2What are some biological functions of proteins? (9)1) catalysts
2) Transport
3) Storage
4) Mechanical support
5) Immune protection
6) Movement
7) Transmit nerve impulses
8) Sensors
9) Control growth and differentiation - 3True or False: All proteins are rigidFalse.
some proteins are rigid (form the structural elements such as cytoskeleton), while others are flexible (limited flexibility but can change conformation- binding of iron to lactoferrin) - 4what are linear polymers made of?monomer units (amino acids)
- 5What type of functional groups can proteins contain? (6)alcohols, thioethers, caboxylic acids, carboamides, various basic groups
- 6What is the general amino acid structure + Label it
- 7What is the difference in aa residues between peptides and proteins?Peptides= less than 50
Proteins= more than 50 aa residues - 8What bond forms between 2 amino acids?A peptide bond
- 9What process forms a peptide bond?Dehydration
alpha carboxyl of one amino acid is joined to alpha amino of a second amino acid with the removal of water - 10What is a polypeptide?a series of amino acids joined by peptide bonds
- have polarity due to varying C and N terminus - 11What end is taken to be the beginning of the chain?Amino end (N-terminus)
- 12What are the 4 levels of protein structure?Primary- polypeptide chain
Secondary- alpha helix, beta pleated sheet
Tertiary - hydrophobic, electrostatic interactions, hydrogen and covalent bonds
Quarternary- complexes form - 13Explain hydrophobic bondingThe mutual aversion to water makes these molecules bind together
- 14What is protein folding dictated by?primary amino acid sequence
- 15What are molecular chaperones?proteins involved in proper folding of other proteins
- 16True or False: Chaperones are induced by stressFalse:
molecular chaperones can be active at all times or induced by stress - 17What is the effect of misfolded proteins?- they can cause toxic effects
- aggregation with other proteins can reduce function
- parkinsons and alzheimers - 18—
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- Beschreibung
- Karteikarten am Advanced Pharm Biotech- Proteins, erstellt von joanna.salvagna am 14/03/2016.
- Erstellt von
- joanna.salvagna
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